ahhhhh Mugen! One of these days its still my plan to have a Mugen. I originally wanted to buy mugens instead of Losi (not that I dont love Losi) but I caught both my Losi buggy and truggy on really good sales so I ended up foregoing Mugen for the time being....but one of these days! :)
The 8ight is not discontinued...at least not the 3.0 and teh vast majority of parts on the are interchangeable. The eight line is has been so popular for so long that I'm sure they probably still make 1.0 parts and I'm sure they'll be making 2.0 parts for a long time to come.