Quoted from jonebone: You used to be able to set a Mint Sealed TMNT 1 (NES) for around $600-$800, now it's $3500-$4000. TMNT has a cult following and these will go quickly I imagine.
Dont be that guy telling people they have Disney tapes worth thousands. I sold off my game collection for over 15k cdn in the last 3yrs to fund my pinball habit.
You want a sealed, graded copy.? Here's two i found in 2min on eBay.
9.0 is about $1,600 usd
6.0 is only less than $600 usd
Maybe not mint but factory sealed and graded. I literally used the first two completed sealed listings I found on Ebay.
Screenshot_20200527-233003_eBay (resized).jpgScreenshot_20200527-233019_eBay (resized).jpg