While I was growing up, the neighbors had a trumpet vine & it always looked nice. I don't think they had to put a lot of maintenance into it, but I was a kid so maybe I just wasn't paying attention?
(Their house wasn't always the most greatly maintained, so I guess I'm just assuming the vine was low maintenance b/c I can't imagine them having dealt with any high maintenance plants.) :)
Then again, I grew up in the country. If the vine spread a little bigger than they intended, it wouldn't have had the same consequences as on a city-sized lot.
holland - I have a back fence row where I wouldn't mind finding a nice flowering vine to grow. The utility easement runs behind my fence, and that area tends to be overgrown with weeds. A nice flowering vine might mask that a little. Our soil is almost entirely clay, and the area near the fence sometimes accumulates a little water if there's a ton of rain. (Otherwise it drains okay.)
I'd prefer something perennial, if possible, so I'm not constantly replanting. Any suggestions? Would that Ductchman's Pipe you suggested above work?