I think there are two factors here. First Teslas are so common in many areas that they are just not that interesting to most people -- car guys or otherwise. Here in San Diego -- and in the Bay Area -- they are so common it is not unusual to see two of them at the same intersection. Car gatherings are all about the unique and rare. If a soccer mom might be picking up coffee in the same car you brought to the meet, then you don't belong in the "show area". I you have a M3 or better yet, when the new Roadster comes out, then you are show-worthy. Briefly.
Also, I do think the fact that the PxxD-series have made many other cars -- entire marques really -- obsolete, is a factor. There are no BMWs, no Porsches, no Lambos and no Ferraris that can beat a P100DL. That is pretty stunning and I don't think it has been fully digested by fanbois of these other brands. It gets even worse when you start talking about Ford or Chevy, as all they had was brute speed -- no styling or handling, which arguably those other brands have. Tesla has eaten everyone else's lunch but some are choosing to mostly tune it out.