I wish Linux desktop users had ANY market power at all. (I'm assuming that it is desktop users that matter here. Server admins are quite capable of setting their BIOS appropriately.)
Picking some random source (statcounter.com) seems to show the number of "other" web browsing OSes out there to be less then 3%. Even if Linux was all of that "other", it would still be less then half the number of MacOS X users. Your "modest probability of sales" is never going to capture that entire 3% and would require the vendor to double the number of types of physical products that they stocked. I'm pretty sure that any MBA worth his salt would laugh at us if we suggested it.