I've seen this argument and I strongly disagree. Speaking anecdotally, I've bought plenty of games after trying the demo that I wouldn't have even considered ot

I've seen this argument and I strongly disagree. Speaking anecdotally, I've bought plenty of games after trying the demo that I wouldn't have even considered otherwise. (Or would have waited to go on sale.) Also, I think it's just the right thing to do — though with Steam refunds, it's probably not as big of a deal anymore.