I actually did it with the games available on GOG, Gamersgate and Steam - at least the ones i played more than once - my current collection if i add GOG, Gamersgate and Steam is nearing two hundred games, with the majority of the games being oldies. I´m still hoping someone starts selling Emperor of the Fading Suns as a digital download.

Note that, on the old times (10-15 years ago) my major gripe was not the game prices (i m not an "average" brazilian, as my income is around U$ 8.000 - 10.000/month) but the simply impossibility of finding the games on Brazil - the price issue was secondary (but i clearly remember finding the original Baldurs Gate for sale at roughly U$ 300.00 - that is simply absurd and i refused to buy it - in fact, i only played BG after buying it from GOG).

I think that the game developers would cut a lot of piracy if they released more demos for the games - sadly very few do it these days - as I can distinctly remeber a lot of games that, after playing once, I tought were a waste of bandwidth.

Makes sense to me... Let's call that a GOG gag. :)