I use my computer and Ubuntu to make money. Fiddling with my software or computer to overcome some glitch costs me money. Or rather, the chance to earn more of it. That's my long term support reason and I'm stickin' to it.
Wrung everything I could out of 10.04LTS during its lifetime; am now with 12.04 LTS Unity. I'll wait for 14.04 to be released, give it six months for the kinks to be worked out, try it on a spare computer for a while, then make the transition once I confirm that the new LTS release enables me to do all the things I need to do to support my income stream.