[packs]

Posting scans takes that issue out of the equation altogether.

For me, if someone messages me saying something like "would you take X?" and a second buyer says they'll pay my asking price, I'm going to sell it to the second buyer. To me an offer and an "I'll take it" are two different things. In the same vein as a listing on eBay that has both a "Best Offer" and "Buy It Now" option. If someone buys it now that trumps a best offer in my book.