I just bought a pristine Line6 XDS Plus, which is essentially a stripped down G50, for $200. So if you can find one of those they are a great little system as well. I also have the X2 XDS wireless, but the XDS Plus is much better and doesn't experience the line of sight issues that it little brother can have at times.
Here's another for $200 o.b.o. Line6 XDS Plus