Indeed.
I can drive to work in my crapped out 1996 Nissan Sentra, but I wouldn't take it to a rally course and expect it to put a smile on my face. It's all in what you want do to with it. I can't fathom doing some of the crap on my 1998 Komodo that I do on my '10 Parker...but I expect different things from each bike. I have more fun on an XC trail on the Komodo...but more fun downtown on the Parker.
If you can't get a smile on your face from a quality vintage bike, it's not the bike.