I do not believe you will regret it. They can be a lot of company and they are wonderful for decoration as well. They do like being solitary for the most part though so I would really recommend a single betta with no others if you have the option. My betta just does not care for tank mates and those that don't have tank mates seem to live a happier longer life for me anyway.
Be sure to send us pictures when you get your little one if you get one.
Rose