im guessing the $7.50 price is from a builders supply or big box that subs out 3/4" S4S to stock in retail for contractors and home owners that don't have custom capacity regarding dimensioning stock. I remember chocking when a guy in front of me at a local builders supply was checking out with a small piece of poplar that rang up at $85....I could have bought 6X that amount for the same price rough and easily 3X that amount S4S at my lumber supplier. If thats soft maple, thats a pretty reasonable cost from the mill for KD material, bit less than I pay here, if thats hard maple its a lot less than I pay here for KD all sap white hard maple that we usually use for drawer stock. David raises a good point, you want to be sure you know what you are getting and you are getting what you want at that price.