Originally Posted by crazy banana

You probably can do that. Especially people who live in a more marginal climate other than us here in SoCal, may not have a choice other than moving containers indoors every winter or to dig up plants and store them.
Personally I have my plants in the ground and occasionally, when I have a pup that needs extra TLC or if someone wants a plant for decorative purposes, I pot them up.
If you remove any new emerging pups of your plant, it does not have to be permanent at all. It will grow, flower and fruit. You will have to manage the size of your plant in a pot as you will with a plant in the ground.
Overall, I am saying that you will have better success growing bananas in the ground, but if the size of a fruit bunch or the taste of the fruit does not matter to you, I would say go for growing in a container, but you will be extremely limited to the varieties you can grow.