It's hard to generalise, because each game is an individual case. Yes, it would have been ace to have a 100% finished ED game from day 1 including all the promised content, but on the other hand I do like taking part in alpha/beta testing and experiencing a game's growth. I don't suffer from "burn-out", and I've participated in the early design phases of half a dozen games. It's a pleasure in its own right.
The only issue I do sometimes have is that long, gradual public development means that a game can evolve substantially and so I'm periodically driven to start from scratch in order to experience the full package. ED is now quite different to play as a beginner than it was 18 months ago, which is good or bad, depending on your viewpoint.
I don't think there is a significant trend of half-baked games being thrown onto the market as a result of kickstarters or early access programs. It's more that we are now seeing and participating in the process, which includes all the failures. Just a decade ago this virtually never happened and we only had "finished products" to play, so a game was just good or bad from the start.
The most annoying aspect of all this is the whining of morons who have bought into an early access game or an alpha test, play it for 30 minutes, and then throw a tantrum because it's "full of bugs and not finished".
