My understanding is that the best wood for longrifle stocks comes from the bottom 5-6 feet of the tree trunk, cutting flush with the ground, which is not a common logging practice. Furniture makers want straight grain as do plywood peelers, but the best rifle stocks have the grain running in a curve thru the wrist of the gun, making it much stronger than a straight grain which runs out in the wrist (think ramrods with run out grain = trouble). This curve in the grain of the wood naturally occurs at ground level when the trunk of the tree is at its largest diameter vs a few feet up when the trunk is smaller and starts a slight taper & straighter grain. Then, to add to the expense, the log if radial cut ("wasting sawing time & wood") will be much more stable & warp resistant than the standard "slab cut" wood. Thus the best gunstock blanks command premium prices. Curl & burl add another layer of cost, thus "presentation grade" vs "standard grade" stocks & their prices,
PS - if it makes anyone feel better about wood prices, I recently paid $42 a sheet for 9 sheets of 4'x8'x1/2" cdx plywood to build a new horse shelter.