You know, I dig Roborally, I just don't find myself wanting to play it all that much. It's a pretty genius design, but it's very much a mathy-style brainburner. And even then for all your headscratching and puzzling something goes wrong and you end up in a pit anyway.
But it is fun, with the caveat you MUST have the right crowd for this. Some people enjoy driving into pits and are going to have a great time. Other people will just get frustrated, and I can totally sympathize (though I laugh my ass off every time *I* drive into a pit or off the edge of the board.)
It's a classic, just not one I try to get to the table very often. As stated above, good in small doses.