I think the schwimm you are talking about is the one my boss now owns, yes it was a lot of money, over twice the cost of our DUKW BUT A LOT MORE FUN, but look at it this way he wanted a schwimm, and yes he is a sucessful buisness man, (started in a garden shed 18 years ago) and he has worked hard for it, now he wants to have fun, he could have bought a Bently or any of the top marque cars and stuck it in a garage but he decided to buy an amphibious vehicle, the DUKW when I asked why he said why not.
I dont think it matters what you have, how much it cost, or how you use it, just enjoy it.
Plus side is it got me from airshows to something I can drive (DUKW driver) and now I own my first MV ( munga ) and yes from our experiance of our business people do take money from the bank in invest in vehicles.
Danny (Have fun don't bitch )