I think it's a good price for games like these. They are very unique in every way even today. And don't forget that thanks to GOG.com and our (fans) interest in Abe's adventures developers decided to convert third and fourth game in the series to PC. :) After few years! That's really unbelievable in times like these! Just read this topic if You are interested: http://www.gog.com/en/forum/oddworld_series/munch_amp_039_s_oddysee_and_stranger_amp_039_s_wrath_on_pc
The price is really fair. You get a lot of playtime, a unique universe and an interestening story. I loved these games on my playstation and bought them two years ago via Ebay for much more than 20 bucks for the PC. When the Oddbox will be released I'll buy them again. Ha!
Though I generally prefer GOG and will gladly choose them over Steam if the price difference is only a couple dollars, I just got both of the Abe games on Steam for $2.49, whereas they want $14.98 here. That kind of price difference is too big to ignore.
Wupster: I'm kind of thinking it would be a good price for both games....but not for each.
What does everyone else think?
When you consider that, before GOG.com, the only way to get these games was piracy or often absurd prices on e-bay; I think $9.99 is more than reasonable. GOG has promotions now and then too, maybe if you wait you can snag these games for even less.