Just throwing this out there...
When I was visiting another state this summer, I found (in Walmart of all places) a gorgeous betta that I simple couldn't pass up. We kept him in a 2 gallon pitcher for about 3 days before we left to go home- a 7 hour journey. We put him in a large mason jar with netting over the top and packed him into a box with cushioning around him to possibly help absorb any rough terrain (and also any slight splashes of water out- which there was none). He did great and is now happily living all by his lonesome in my 6 gallon filtered tank.
But years ago I traveled with my betta (when I was a kid) and he didn't survive. I think it had a lot to do with his age- he was 3.
All in all, you gotta realize that a betta- a pet- is a complicated gift. While he's at the hospital, he needs to be taken care of. Who would be doing that? And afterwards, he needs a good permanent home! There's a lot more to having a betta than just sticking him into a small bowl and feeding him whenever you remember. They are awesome fish- the smartest, in my opinion- and they deserve to be treated as such.
Good luck in what you choose. Just be responsible with your actions.