Sometimes I love David Bowie so much that I think it's worth being alive just to be able to put energy into loving David Bowie.
It's the last little bit of the song that pulls it all together, but the combined cheesiness of the snare drum and the bom-bom-boms is hard to resist.
I do love Transformer generally. I think it's because it's poised at that first moment of post-youth insanity when you start to think 'hold on, is this really what I want to be doing with my life?' but you haven't actually decided whether the answer is going to be 'yes' or 'no'. Plus the insane but glorious mix of Lou Reed-ness and David Bowie-ness (and Mick Ronson, no doubt).
Of course, you have to be in exactly the right mood or the whole thing is just blooming annoying.