How long? What bass? What's the general economy doing during the time? Does "increase in value" mean worth more dollars or worth more buying power? So many variables.
In general, five years isn't enough to make any bass more valuable than it was new. But it depends on a lot of factors. Did the company go out of business but that particular bass is highly sought after? Were there major changes in construction (and it's immaterial whether the changes are good, bad, or neutral- the market will make decisions based things other than facts as often as not), etc.
The market values '70s Fender much more highly than a lot of people who bought and sold them in the '70s might value them. My Fullerton-era VS '62 P is worth a lot more than I paid for it in 1983 (at least in dollars- but not likely in real buying power). But a five year old VS '62 P is worth less than what it cost to buy new in 2006.
John
In general, five years isn't enough to make any bass more valuable than it was new. But it depends on a lot of factors. Did the company go out of business but that particular bass is highly sought after? Were there major changes in construction (and it's immaterial whether the changes are good, bad, or neutral- the market will make decisions based things other than facts as often as not), etc.
The market values '70s Fender much more highly than a lot of people who bought and sold them in the '70s might value them. My Fullerton-era VS '62 P is worth a lot more than I paid for it in 1983 (at least in dollars- but not likely in real buying power). But a five year old VS '62 P is worth less than what it cost to buy new in 2006.
John