pps, by pinheads, do you mean those special anti thief thingees that takes that special tool? A good friend of mine has those on her bike, and last year sometime I had to help her with something on the bike, and it took her a while to find the keychain that she had the special thing on, so we couldnt take the wheels off until she did.
in my opinion, its just one more thing to keep track of and not lose. And while its probably very unlikely that you will get a flat, its nice to just be able to take a wheel off lickity split without fishing out the doohickey.
ya ya, I know, everyone has an opinion on everything ;-)