Dragon Fruit

I always wanted to try out a dragon fruit, (also known by lame people as "Pitaya"). It's a fruit that comes from a catus and it's mostly naitive to the more tropical regions like southern Mexico and looks something like this.

I mean, just look at it, it almost looks like a one of those weird fruits from One piece. Do i have to explain why it looks awsome and i want one?
The problem is that it's not easy to get where i live and would have to get it from am online store, but i do plan on buying the cactus it comes from, make a greenhouse and, that way, i'll have all the dragon fuits i want