I don't know that it's been discontinued, but more of delay because of the the whole Hobbico vs. Traxxas incident.
Since you posted in the 1/8 scale section, is that a must have scale? A lot, if not most, of 1/8 scale RCs are 4wd. I don't know of too many other 2wd 1/8 scale buggies unless you look at the UK sites have Acme Racing and FTX buggies.