Being in the Chicago area, I have seen plenty of Porsches since the weather turned warm (there are always boxsters around, and they are so common, I don't count them - but I have driven one, and they are fuuuuun.)
I have tried to wave at them, but they mostly ignore me. Wifey and I were driving down Sheridan road, along the lakefront. I saw a newer 99something driving up ahead. I kicked Kermit in the Ass to catch up and do the wave thing. He saw me coming, and pulled to the right and STOPPED TO LET ME BY!!!!

Wave? Hell, he thought I was dangerous. Was he afraid that I was going to leave a trail of Parts on the road???
But I will admit that lately, I have gotten a few Big Thumbs UP and Grins from guys in newer cars around here.
Some are just so stuck up. I wonder if they think that I bought my '73 cause I couldn't afford a new one??!?!?!? Dots OK, over the next 5 - 8 years, the value of mine will surpass theirs, and I'm having more fun just toolin around. I'm not trying to impress anyone (OK, I am, but it is the car that gets the stares, not the mid 50's driver.)
(btw, I'm in for the T-shirt)
larry