Okay, I put my hands up. I confess to spending far too much on bins. On the other hand, I spend practically nothing on watches, clothing, beer, cars, petrol (a.k.a. gasoline). Marginal Utility is a very personal concept.......
An excellent point Sancho. I suspect that Optics are many birders main outlay. If I look at workmates expenditures on Sports-cars, drinking, chasing women, gambling, ,more drinking, gigantic TV's, fabulous holidays, yet more drinking, Sky TV with sports channel, even more drinking, houses they cant afford (both home and in holiday destinations), loads more drinking, and all the other things I miss out on, then what kind of indulgence was my Zeiss scope with Carbon-fibre tripod, various cameras and and several pairs of binoculars (I've got a lot of eye's...).
Lets put these things in perspective!!!