If it weren't for a certain Las Vegas resident, they WOULD only be worth $40-50 like some of the others. But management at Barbary Coast got so riled up at said resident, that he ordered all Strikes that were traded in had to be sent back.
That leaves basically only those in collectors hands now, as available. Most of the others will be turned in by the tourists, but when lucky, we'll find them on eBay.
It would appear at least 1-2 racks a year get destroyed...and this has been going on a few years now.