I agree with #1 - it's expensive. And that's coming from someone who predominantly pays retail prices, and I already find it expensive. I cannot even fathom how f'expensive collecting toys off the secondary market would be.
I strongly disagree with #2 and #3 though. I love Transformers... if I didn't like them, I wouldn't collect them. I stopped collecting Marvel Comic toys after they switched from Toy Biz to Hasbro. Transformers on the other hand has never lost its appeal to me. And I mostly stick to buying toys that I expect to enjoy on some level (sure I've made a few mistakes, but on the most part I like the toys that I buy... hence why I seldomly post sales threads!).
Collectors Fairs, Conventions and annual midnight sales are the only times I line up to get toys... and even then, the former two are things that I mostly attend for social reasons rather than to obtain toys (getting toys at fairs and cons are things I see as a bonus and most of the time I walk away empty handed... I get far more satisfaction from just socialising with fellow collectors/nerds)
My priorities are...
Primary objective: Play with toys
Secondary objective: display toys
Tertiary objective: purchase/collect toys
It seems that this author's priorities are inverse to mine, which might explain why he may be unhappy with it and compares it with being a drug addiction rather than a fun and enjoyable lifestyle choice. It'd probably make me feel miserable too if my priorities were like that and I was still buying toys -- as the article says, in that case it's the getting, not the having. But for me it's the having, not the getting. Once I've gotten the toy, then opening it and playing with it is where the real thrill begins. But perhaps for this guy, that's where the thrill ends and he feels bad until he can get his next "hit" (toy purchase).