The Collecting Fun average price is 17.3% below TCR low value so that is quite close to your stated 20% fair value discount to TCR, if indeed that is the general case (of which I have doubts). This would, at the very least, indicate that these chips are fairly valued, but definitely not highly priced.

In any case, the market eventually dictates what the prices should be. You are welcome to join Collecting Fun and provide competition, in fact I dare you .