Why does the USPS Non Denominated Postage Guide in the link below show the First Class Breast Cancer stamp as having a postage value of 55c when other First Class non-denominated stamps have a fixed postage value at the time of their issuance?https://pe.usps.com/text/qsg300/Q604a.htm
Look at this envelope on a thread posted on these forums. The stamp indicates it was issued in 1998, when postage was at 32c, but the sender was able to use it with no problem (meaning not adding 12c in postage) in November 2011 when the first class rate was 44c. http://goscf.com/t/20355
I don't think it's right or fair for someone who bought this stamp in 1998 when postage was 32c to be able to use it at the current value.