And I would prefer to buy games when I want and not wait for some stupid sale to include the game I want to play now, in a year, maybe. Not buy games I already played or I am NEVER going to play, just because they are "cheap" (in reality they are not, because you cant resell them). And be able to do with my game license what is my right by law and not what some greedy game company thinks.
Also no, your steam games are worth nothing in money, because you cant sell them - unlike Whitecranes used console games (and maybe still some pc games like Witcher) that can actually be sold for money.
I do buy the games I want, though...I buy them in bulk during Steam sales with a few bought at new (eg. Skyrim, BF3) and then have more than enough games to tide me over until the next Steam Sale, I save much more than I would by selling my games used or buying used off of eBay, especially considering you can find some great deals on recent games at any time of the year if you look carefully too. (I just checked and there's a copy of Crysis 3 on eBay for $25...Origin is still at $79.99 at the cheapest for me.)
They're not worth anything if I plan to sell them, however considering I can play them regardless of Steam due to how open PCs are I'd personally say they're worth a lot to me...I played them, I have finished a great deal of them and continue to play them and go back; not all of us definite value by how much I can sell the game for...I still have my PS1 and a lot of my PS2 games specifically because I know I can always play it, same with Steam...I don't get really affected by the loss of used game sales (Nor do I think the majority of PC gamers are) and have really saved a lot of money by using Steam.