Vintage Boxing and SMR

I just noticed that the online SMR does not show priceing for atleast two of the vintage boxing sets anymore. I'm curious as to why? I know that it's been getting very high bids on ebay recently and was wondering if they are just trying to catch up to current market prices? Thanks in advance.
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Best version of SMR is completed ebay and catalog auctions.
Always looking for Topps Salesman Samples, pre '51 unopened packs, E90-2, E91a, N690 Kalamazoo Bats, and T204 Square Frame Ramly's