Nope. The only real stipulation is that he must offer to provide the source code upon request, and may even charge a nominal fee to cover shipping & media.
To the OP (and everyone else for that matter) – This has been said a thousand times, and will bear repeating a thousand times more: it is perfectly legal to sell GPL software. It is totally and absolutely allowed. Tell your friends, and tell them to tell their friends.
The problem with the seller’s page ist not Blender itself, but the artwork. I recognize some images from some known artists and also from blender.org. If he didn’t get permission to use those images to sell his Blender, he might get into trouble, in case the copyright holders take action against that.