I'm a magic-tech lover, though I should add a caveat or two. I think, like alot of other people here, that magic-tech is only lovable when it's got a good campaign idea behind it. I personally hate the 'Alien technology crash lands in Tolkeinesque world' idea - it seems like there's just lasers and robots bolted on top of what is actually a generic campaign world.
Really to have a good magic-tech world, you need a reason for there to be both. In my campaign, technology was first worked out by a slave race within an ancient empire. The slaves were forbidden to use magic, so they developed technology to overthrow their oppressors.
P.S. I've always wondered why magic is always more ancient in most magic-tech worlds. Are there any worlds where technology is well-developed and then magic arises due to some event?