I just find it strange that this particular seller seems to offer only these "type" never-opened casino chips in his currently listed ebay sales.

Would you not agree that the onus is upon the seller to prove his claim that these chips were intended for use in a real casino ... instead of offering a vague unconfirmed description of intended location?

Where was this so-called intended casino supposed to open? What country ... what city? The burden of proof should not lie with the buyer, but with the seller.

If the seller intends to offer chips that were intended for home-use poker games ... I can accept that fact. To suggest that these chips were intended for a casino that never opened ... without supporting documentation as to where ... leaves a cloud of doubt in my (and others) mind.