The issue you mention is basically that pirates, both professional and amateur, have adapted much faster to the emergence of modern communications than legal sellers. That's why Napster emerged long before the first legal downloads became available.
Which is why copyright infringement is such a problem for artists of all types. The very technology that allows artists such widespread exposure also allows their works to be stolen with relative ease.
I imagine most producers of luxury items suffer the same difficulties right now. I don't see why artists should be exempted from that group. And of course for copyright holders of educational texts and other more everyday items this is far less of an issue. It's a matter of demand for luxury items, not copyright protection.
Yes, but we're talking original works of art and NOT diamond rings, or Ferrari's here - a painting is a unique item that isn't mass produced. Also, most educational texts are massed produced and more often than not use staff writers whose work isn't copyrighted except as part of the text. It's a shame that you believe the only worth in art is that it's a luxury item.
Oh, please. I'm pretty sure the Mona Lisa is no longer under copyright, but I doubt anyone will reduce its value by making copies. Such potential buyers pay for originality, with or without copyright.
I'm pretty sure that Leonardo Da Vinci didn't die 70 years ago. Most of his paintings are already in the public domain, but it's not the image itself that is valuable, it's the actual painting.
I already answered that:
it generally takes more time to find investors, construct a production facility and set up a worldwide distribution network than to set up a website for sales.
And you're telling me that inventing a new computer chip (or potato chip) requires a completely new production facility? You're telling me that an inventor has to set up a worldwide distribution network from scratch? If your invention is worth anything at all investors will jump at the chance to produce it and most often will buy your patent outright. Say for instance you invent a new computer chip - don't you think Intel or some other computer chip manufacturer would be interested and consider the production facilities before they make you an offer? It's not like the inventor himself is going to have to build a factory to produce his invention.
Now, how would you feel if a company like Intel simply boycotted your invention until after ten years, then took over your idea to mass produce the chip you invented. Would you consider that fair?
To sell copyrighted works all you really need are online sales, and if you want more conventional exposure any music distributor/book publisher/art gallery can sell your work.
That's all that's needed huh? Check eBay to see how much most art is sold for, then go to an art gallery and check the prices for a similar piece there. If you were an artist, which price would you rather get for your work? The same is true of music or literature. You'll notice that "conventional exposure" usually brings a better price to the artist for original work and better copyright protection.
On the other hand, an invention may require construction of a brand new production facility, official safety tests, incorporation in a complemental product, etc. The investments in time and money may be far greater.
And you believe that most inventors are responsible for these costs? As I said before, if your invention has any merit at all, you'll recoup the price for your work early on as any company in a related field will buy the patent outright from you. Take for instance the inventor of Velcro, you honestly don't believe that he actually paid for the factory to produce his invention, or paid for the marketing, do you?
For example, a modern chip factory costs approximately 2 Billion dollars and several years to build. But any song of yours, no matter how artistically brilliant, can be recorded and distributed with a fraction of the time and money required.
And the money you'd make from inventing a totally new computer chip would likely be at least 100 times more than anyone could make on a song or a painting. Again, why do you think it's a viable alternative for an artist to distribute his work via the internet. If you wanted to be realistic, you could post the schematics for your new computer chip on the internet just as easily - but I'm sure you'd have a difficult time proving you were the inventor once the technological pirates got ahold of it.