Sniff, Sniff, What's That Smell?

A sign seen on a GenCon vendor's booth:

We reserve the right to refuse service to anyone (Specifically people who haven't showered)

Overheard at the GenCon gift shop:

Deluxe badge holder... 8 dollars
Commemorative T-Shirt... 35 dollars
Using the soap the hotel provided you free of charge... priceless

For a group of people who can be amazingly anal about the craziest stuff (what number is facing upward on their idle dice, who gets to touch their dice, the condition of their pristinely-stored books, etc.), gamers seem to have an amazing number of people who are not similarly anal about applying liberal amounts of soap and deodorant to themselves on a daily basis.

Can anyone explain that apparent contradiction?