Have a gamma. It's more of a curiosity but good for showing you the basics of mining at a low cost.

If you're anything like me you start off with one of them and think "hmm 1TH/sec is nice but now I want hundreds of TH/sec" and then you realize your home electricity supply or the sockets on your wall are cripplingly limited.

I keep hovering over the buy button on an Avalon Q but I'd never be able to run it at full power without risking tripping breakers lol.

Magicminer BG02 is a nice device too.