When exactly did the unbroken MMOs come out? That's the argument right? Don't pay to build their game? Don't pay for them to release unfinished product? Is this seriously an argument being thrown around in a MMO forum? Name those MMOs released without significant issues. WoW had a lot of issues early. Rift messed up it's own namesake system right before launch. GW2 didn't have parts working. Name the MMO that came out where people didn't have to help fix the game they already paid for. Where people didn't have issues logging in or staying logged in. Still buying them aren't we? It's really simple. Pay for what you want and then go fuck off.
		
		
	 
It's not my argument, but to play along....
GW2 was extremely playable at launch. Their auction house thing was down, but the game was playable, beyond some lag here and there. It was actually the most playable launch I've been a part of, thanks to their overflow servers - no queues, you got to play. That seemed to be the standard story from all my friends at launch too. Seemed like a great launch, AH aside.
I actually dug up some old emails from an old mailing list with some RL friends from WoW Beta / Launch. I don't personally remember any of it - what issues were there? Our emails talked about how great a launch it was. That's all I have to go on there.
Of course, preorders have been common for years, so your argument would be "before preorders, MMOs were perfect". I don't know exactly when preorders were the norm, but it was obviously long before Rift or GW2 anyways. I don't know if it was before WoW. EQ was before that time, but it's launch was pretty terrible from what I heard - but I don't know if it was just full servers of what.
But all of that wasn't even what I was saying - provided all your comments were directed at me, but maybe they weren't. My point is that people are upset at paying for alpha simply based on the precedent it will set, not at  the individual actually doing it so much. Before pay-for-alpha > kickstarter > preorder w/ beta access > preorder days, games mostly got released and worked when you bought them from the store. There's lots of reasons why it's different now - patches weren't an option, recalling and issueing new carts/cds was expensive, 3d engines are very complex, and MMOs are *very* complex. But already having people's money definitely is part of the total picture.
And I don't even care if people pay early or not, I just find the discussion interesting.
Edit: Wait, maybe you weren't responding to me after all. I think I get what you were saying - that people arguing "alpha/preordering pays us to fix the game" isn't working, obviously.