I look at it likes this, there are so many 3P offerings out there that I can't just get everything that I find interesting. Example, I'm super curious about UT Challenger's transformation, but I can't justify buying an $110+ figure (right now in my life) just to check out the transformation once or twice. Each year adds more choices of representation for the same G1 characters, I just don't personally have the time / money / effort to research which version is the best version of the character. Hence, my interest and budget in 3P gravitate towards the more unique pieces that typically sees less representation. Plus, the increase of prices on official MPs I really want (BW Megatron for example) is limiting my 3P pickups even more. I get there are coupons, sales, etc, but lots of discounted figures still adds up. Each collector is going to have different habits and reasoning in collecting, so I hope this sheds some light on mine. Just my 2 cents.