I think we are talking apples and oranges here.
I belong to both groups. I have a Beretta O/U to shoot clays with off the shelf $5/box of 25 (on sale) target loads.
I collect antiques guns where the value is decreased if they have been "messed with" such as having been rechambered. I shoot those guns with either RST shells at about $10/box of 25 or reloaded RST shells which cost about $4.50 to reload (not counting my labor).
Yes, the modern shooters vastly outnumber the serious collectors. However, they, like me, are not necessarily mutally exclusive.
Several days hunting with RCC with a 2 5/8 inch Lefever using RST shells cost less than the hamburgers I had for lunch. I certainly don't believe that rechambering the A grade Lefever I was using would add to it's value, rather I feel that it would seriously lower its value. The number of people interested in buying a gun like that for what it is worth probably numbers in the hundreds, while the numbers buying over/under modern chambered Berettas and the like number in the millions.
