It is worth it because
1) If you are a money player, it will come up some time trying to match up.
2) It is a good way to beat a better player that can not shoot real well opposite handed (or 1 handed). I was once getting beat by a friend of mine now, but at the time we were adversaries, and he was $300 up on me. I told him I was done, but that I would continue if we both shot 1 handed.
He agreed and at closing time, I won $250 from him, as I was the best in town at the time shooting 1 handed, even though I wasn't 2 handed.
3) Good way to play lessor players EVEN, especially if they gamble.
4) What you learn from thinking and paying attention to your form opposite
handed flows back to your regular stance and shooting, and can benefit
your regular game.
5) One of my best hustles used to be, 'Hey, I tell you what, I play you for $20 a game, and I'll shoot with my left foot'. (using left foot as a bridge).
I had guys jumping up all over the place to play me, that is, unless they had seen me shoot before with my left foot.