Having worked for Washburn (a long time ago) and worked with Randall (on the Warhead and Colossus) I can tell you that I would not buy anything from this company. They are the masters of coming up with a good idea and screwing it up by trying to make it cheap, or just getting lazy and putting it out before it is 100%. They also don't stand behind anything.
Historically, there have been things (amps, guitars, etc...) with modules to quickly change the sound. They were never very popular and, if you had one, about 2 years later, the line was dropped and you couldn't get more modules, parts or service.
It is a better idea to get an amp that gives you the sound you want. If you really need a variety of sounds, get a Pod, Tech 21 PSA-1, or something along those lines. These people are at least trying to do a good job and stand behind their stuff.