Completist? I can't even complete my own sentan
But enough joking. I'm no completist, and I don't really understand it to well either. yes sometimes I fall into completing a sub group or team of figures because its nice to have them together, but I wont go out of my way usually.
In the end I collect transformers based on the combined value of ingenuity, design, nostalgia and sometimes originality.
I don't understand devoulty collecting either modern or classic. While I like the first 2 Microman years of G1 I find later years fail to impress me a lot of the time, it feels like they went backwards. While I appreciate the value of Nostalgia it will only take me so far with some toys. As such I sold of a lot of my G1's and tend to just have sample figures from the various era's a sample Deception Target Master, A sample Brainmaster etc etc. I have no real desire to ever complete G1 or in fact any of my TF collections.
And to be honest most of my favourite TF toys come from the 2000's now, be they Masterpieces or Binaltechs, even Henkeis. While of course these do not form the majority of modern TF lines I still have to personally disagree with the idea that modern Transformers are somehow less than there forebears, for me they are often more (but I do like to see where it all began).
I personally try and avoid toys that don't appeal to me, but what you have said makes me want to ask another question about collecting And this is for everyone.
When we do get an awesome toy that really knocks our socks of it's great, but as we get more similar but equally awesome toys do you ever find that the impact of each new toy is lessened? Or does acquiring each toy excite you more and more as you get nearer to collecting the whole set? For me it is the former and that's probably why I'm such an anti-completest. I buy into a fancy new toy line (or and old one) and then keep going until I'm no longer impressed. Of course if most toys Impress me I can go for quite some time. I guess that's why a lot of my collections are more like sampling’s than complete sets.