Originally posted by cxdoo I'm not so sure it's a given old glass will rise in price. *If* they release updates for most coveted glass, with new coatings, possibly WR and motors, quick shift and all that jazz, I expect the prices to stagnate, or even go down some.
The reason I was thinking of a price increase on old glass was based on a recent example. When the 645Z was announced, prices on old 645 glass went nutty on Fleabay.
Now, the FA 31 is still in production, so perhaps that will stop the price rising on that as used prices should never even approach what it goes for new. But for older out-of-production glass (F-series and FA series lenses) that is discontinued, I would expect those prices to rise, at least for those lenses that have a decent rep.