There are two grossly misleading things at work in the stamp hobby.
- First is that the catalog values do not reflect actual market values; in many cases market values might only be 10% of catalog values and dealer may offer even lower.
- The second thing are some of the listing values on eBay
; there are many 'wishful thinkers' (putting it nicely) asking prices that are no where near actual market values.
These two things can led folks to have unrealistic expectations as to stamp values.
(Note: Some stamps, especially those in the classic era, can have market values higher than catalog values but these represent a small percentage.)