I dont collect all of them but I have started an Optimus Prime collection. I only buy the ones I like which are incidentally G1/Bayverse/Prime Optimus, Bayverse/Prime Bumblebee, Prime Megatron...infact pretty much any Prime character....I just like how they look and how 'grown up' the whole thing is, any Soundwave (he's my fave lol). A have recently become rather 'interested' with Prowl lol, that is only cos of the Robots In Disguise comic.
Loving your collection though...my hubby would literally kill me though if I had that many so props to you for amassing such an army!!
This one inspires such jealousy...I mean, takes me back to the bygone days of my misspent youth. Why did I get rid of the boxes? Or half my Transformers stuff when I got older? *sigh* As if I ever grew up anyway... But seriously, you have a great collection and props to Nick & Jean for taking some good photos of you in the middle of it.