That's an awfully big leap from wiping down the dryer drum to buying out a hotel in a crowded metropolitan area!
You know- just throwing that out there but; go tell some guy with a swirled up mess on his car that you spend hours polishing, have hundreds of dollars in detailing supplies and have 'regimens' regarding sealing, waxing, coating, etc. See what he says! "You're nuts, I just take it to the automatic car wash once every couple of months!"
It's all relative.
My grandpa is an avid deer hunter and does a VERY thorough alcohol cleaning of his washer and dryer before washing all of the clothes, camo, underwear, etc. that he'll be taking with him on the weekend in a non-scent detergent. The wipedown is to ensure that no perfumes or scents from previous detergent end up on the clothing!