Originally posted by Wheatfield I expect that data doesn't include the vast majority of lenses sold, which are those that come as part of a kit. I'm betting your experience is pretty much the norm for the person who never gets past casual use where a camera and kit zoom lens combo is the only purchase made.
To get down to an average of 1.5 lenses per user bought, there are about 50 users who have bought no additional lenses just to offset my lens purchases.
I admit I am not a typical user, but any advanced user who ends up with half a dozen lenses is skewing the average up by a significant number.
My guess is that the typical entry level buyer stops at the initial purchase of a cheap body and kit lens. A small number will buy a second kit quality zoom that gives more reach.
The question of lenses is complicated.
When I purchased my first SLR, it came with a Pentax-M 50mm f/2, which I still have, and it is usable on current cameras.
After that camera was ruined by spray at Niagara Falls, I purchased another SLR, which was kitted with a Pentax-A 50 mm f/1.7.
After a 20 Canon “vacation”, I purchased a K-30, which was kitted with some kind of 18-55mm.
In short order, I purchased a new DA 18-135mm and sold the kit lens - then I purchased a DA 55-300mm lens.
Less than three years later, I purchased a KP sans lens, planning to use the lenses I had been using with the K-30.
In the next couple of years, I purchased a DA 20-40mm Ltd and a DA 55-300mm PLM.
If I would purchase a K-90, I would expect to use my current lenses.
When @Adam had raffles giving away K-1 cameras, I originally didn’t participate because I didn’t want to purchase ‘DFA’ lenses right then, but then I realized the lenses I was using with my K-30 now were “FF” lenses {actually a FA 28-105mm and several Takumars}, so I could retire the K-30, and use the K-1 with the lenses I had been using with it. Of course, I didn’t ‘win’ then, but it remains as my plan if I should ever get a K-1.