I was just like that too. I'd only vaguely been aware of what Transformers Animated was because of 30 second youtube clips, and I kinda wrote it off for the same reasons. I thought Blurr was hella cool, so I wanted to get him (and thanks to VE Telus ended up doing so), but I didn't think for a moment that I'd care about anything else. FF a year, and while my TFA collection is still pretty small, its not only bigger than one character, but I've also gained a very solid appreciation for the line in itself, part of which had to do with the realization that characters like Blackarachnia & Waspinator were given an incantation, and getting introduced to Lockdown definitely followed suit.
Also, both this place (and by certain extension TFW) have become a pretty big part of my life since coming out of stasis, and its really not just about the toys or media. I'm here almost every day, at least poke around through most areas, and am really glad that I decided to get back into things full force.