Welcome Phil
I know what you are saying, I ride sleeper bikes for a reason, I find good quality old bikes with style, usually on the side of the road at tag sales, I strip out the frames and re-fit them with current high end components. I do this to avoid the snobs, If they won't give me the time of day, I would perfer them not come over to talk to me. I ride around 10,000 miles a year, I consider myself an accomplished cyclist, I am curtious to all who ride bikes, I talk to everyone and help those who ask. I ride all organized centuries that I can find, I'm not young. There is no better feeling than going to a century, targeting the biggest snob on the most expensive high tech bike, dressed in $400.00 worth of cycling cloths, riding 100 yards back for the 1st. 50 miles then droping him like a rock. Think about it, he just got dropped, and couldn't catch, the old guy on the old outdated bike, in front of his buddies. The lesson learned here for him is, You don't have to flash to be good,, Ya gotta ride.
Keep riding Phil and remember, there are no bad bikes, enjoy your bike.