I have just set up my 55 gallon, and put my betta in to help cycle the tank. He has been in there for about a week and (maybe it's just me) he seems really happy in there! I dont want to take him out, seems like it would be almost cruel to put him back into a 1 gallon bowl. Guess it all depends on what other fish I end up getting. Any ideas on suitable tank mates? 
i maybe wrong but i can't imagine a 1.5 inch betta being able to rule over other bettas in such a large tank. Just think of all the color the aquarium would have