i dont really use fixed knives much but like to buy, hold, trad and sell them. they have done me well by holding value and more than not gaining value.

the only scrapyard i have is a regulator but i just ordered the safety mutt and 511.

i search ebay for sold knives to see demand and inventories available, havnt seen a safety mutt but i have seen regulators and 511's fetching more than what you can buy direct for. the sold out 711 commands a nice premium.

my question is, for the purpose of collecting and potentially reselling, what are the better models out there, im guessing discontinued and sold out items will garnish more money and demand.