I used to keep mine in pots, but ended up putting them in mini-bogs for several reasons. First, I think it looks better. Second, I don't have to water as much, and lastly: It gets real hot and dry here, and having more soil around the roots in the bogs vs. the pots provides a better buffer for the plants' roots. In the pots those roots got too hot!
Minibogs are really the only way to go for Sarrs and VFTs if you live in the desert. Or else you gotta have a really big, deep tray with a lotta pure water that'll heat up and evaporate away too fast and too often anyways.