I'm a believer in using stuff, whether that be film cameras or rare WW2 aircraft. If someone can afford a thing and uses it for its intended purpose, good on them. If they buy something as an investment or to keep in a showroom or a glass case to show invited guests, they may as well show me their shares certificates for all I care. Some optical devices like medical or astronomical imaging equipment costs a fortune, but is of next to no interest to photographic enthusiasts. Same with large format digital, if you can write off the cost against your £15k a day professional fee, go for it. For making compelling, timeless or historically important images on film a more modest financial investment is required, but a bigger commitment in time and effort may be called for.