We've noted that certain drums are selling for, or are up for sale for, some pretty serious prices. I got to thinking about just the inflation factor. I found on line that inflation of $100 since 1967 has taken it to about $712.I distinctly recall walking in to the local drum shop that year to take a lesson, and eyeing a Gretsch Progressive Jazz set-up in white satin flame. Configuration was 20, 12, 14 with a 14x5-1/2 snare drum, cymbal arm on bass, one floor cymbal stand, hi-hat stand and the floating Gretsch bass pedal. Price on the floor was $660. (Ever notice how you can recall what you wanted and couldn't afford?) No cymbals and no seat. I also recall thinking, good grief, it will cost a grand with Zildjians and a seat. Some dealers like Sam Ash were already providing deep discounts in NYC in those days, but you didn't see that out in middle American.So if I take $660 on a factor of 7.12, I arrive to $4699.20. Of course, some kits may require depreciation. But it shows that for the real deals/rare stuff, the prices ought to be fairly high if the condition is really good. There is of course the factor of increasing value due to aging of the wood and the kit's relative level of antiquity and other aspects that are hard to assess. There is also a bit of a need to consider what that same kit costs today in close to identical configuration and construction. Bottom line. If you have one, you should be able to do well on it if you got in some time ago or found it recently for a wicked good price.