I've been playing guitar for a few years now pretty seriously. I absolutely love the challenge - because in music, you can always get better than you are, and there is absolutely no limit.

The only downside to playing guitar has been its impact on my wallet/ bank account. I have probably dropped 7 or 8 thousand on a few nice acoustics, an electric, and all the amps and pedals you can imagine. It doesn't mean that you have to spend a lot of money to play guitar. I just have a knack for wanting the latest and greatest there is.

In my mind, I think guitar is actually one of the cheapest instruments to learn - you can get a great sounding acoustic guitar for under 400 if you know what you are doing, and there are starter packs for way less than that.