Wondering about growing exotic plants

With the difficulty we have in procuring various ingredients for recipes around here, we've been kicking around the idea of buying some plants, and growing them ourselves.  We already have a good little crop of lemongrass (which LOML planted a few months ago, and is growing nicely): next time we get some galangal, we may save a piece and try to root it.  The current discussion is about curry leaves and kaffir lime leaves: they both are small enough shrubs that we could grow them in plant pots on the deck, and bring them in during the winter.  Not sure whether we'll actually follow through on the idea, but it's fun to contemplate.

Yours, wondering if this is a way to curry favour,
N.