misteryo: I'm not even sure I understand what you are saying? What are the two sides, and to what issue exactly?
People want GOG to stick around, because they like GOG. Some people think GOG will most likely stick around by being staunchly niche (or revolutionary). Others think that GOG should compromise in order to survive and thrive. It's the kind of decision businesses struggle to make every day.
Sorry, I should have been clearer.
The basic sides as I see it are:
More consumer friendly to lose some games due to attempting to maintain a fair pricing policy.
Less consumer friendly to lose some games due to this attempt, as it reduces choice.
This is, admittedly, a bad way to paint it though, as both are right and wrong in their own respects. The ones that are frustrated with this move are right that less choice is somewhat unfriendly to us as consumers, but the ones that may also be frustrated but are more okay with the losses are right that it's better for us as consumers to pay a fair price as opposed to one inflated for some reason or another (I'm not terribly familiar with the intricacies of this). Albeit the former is wrong to acquiesce to publishers' desires and the latter is wrong to be too complacent with GOG's decisions resulting in a decreasing selection of games.
The issue is a mixture of attempting to maintain fair prices at the cost of losing games in the process. (Some don't care about the pricing side, more retaining choices, whereas some are more concerned with the pricing, it's not what I'd call a simple issue).
At any rate I agree with your observations, and apologize again for not being clearer.