If the price difference between CL2 and not-CL2 is negligible, I'd go ahead and run CL2. Aside from cost, there's no reason not to. Even outside the walls it makes a nicer looking patch cable. I use the
black-jacketed Nimbus series wire, just because it's pretty. For me, that it's rated for use in-wall, in risers, wherever, is just an unintended bonus.