Well, all I know is that I'm out of the 1/6th game. I might have continued with Sideshow's GI Joe line, had they not cancelled it, but Star Wars, Predator, etc... Forget it. When lines constantly put out "improved" V2s, V3s, etc. it just burns me out.
Happened a long time ago, too, when I collected Hasbro and Lego Star Wars. It just burns me out, causes me to lose interest... I HOPE it doesn't happen with Transformers. I mean, I guess they've technically given us some Masterpiece V2s, but that felt more like a maturing of the line when they decided upon a proper, unified scale.
The third party game is a different beast, of course. I have to admit, I always feel like it's a bit of a "risk" when I get stuff like FansToys Willy, or BadCube's Sunsurge... Not so much Dinobots and Insecticons, though. I do try to keep things in moderation, though. For example, I didn't get Appolyon, and I decided to sell my Sphinx upon arrival, too.
I was lucky to decide on selling my Quakewave (a little above cost, when MP Laserwave was announced), and especially stuff like the iGear vans and Coneheads... Not so much on my Hercules. Any takers, lol?
But hey, you win some, you lose some.