good name. Not low xxxx, but definitely around $400-500.
btw, 'y' means 'and' in Spanish, so if you find a Spanish end user, this could go much higher (because in Spanish it would mean 3 and 3, or rather, tres y tres)
Develop it. It is an easy name to remember and unique. It is also a good number hack as you mentioned. I think it could have far more potential developed than the few hundred you would get selling it right now. Plus, if you develop it, then you can turn around a year down the road and sell it for even more money.