for 6-digits-codes of yellow llama the current secondary market prices (in particular eBay) are approx 30 USD atm ... your price expectation is too high for these yellow stamps
for 6-digits-codes of red honeybadger the current secondary market prices are approx 300 USD and for red llamas approx 250 USD atm ... you should get more for your red stamps there
Thank you

But I am just looking to get rid off these stamps since I don't have any use for them now and need the funds.
Anyway, much appreciated on the insight !