Went through all 5 rating exams at the college and even though I was offered a shot at Area (after a brief spell of madness in TC), I left NATS and went to work at the pointy end of things. Can't imagine being back in a centre again.
Look at it this way, most twr/app people I know love doing radar, but it's nice to look out at the shiny smartie tubes as well. Not too often mind, but a bit of sun is nice now and again.