Mike,
My Grado RS-2's took several weeks of run in until they sounded their best. They sounded a little dark right out of the box, then got brighter and then smoothed out. They also lacked dynamics when brand new. I think the RS-1's may have a slightly larger earpiece, which should equate to a little more bass and the RS-1's may still come in a nice looking wooden case. The RS-1 may also come with an extension cable. The prices you are quoting for either combo are good deals.
My Grado RS-2's took several weeks of run in until they sounded their best. They sounded a little dark right out of the box, then got brighter and then smoothed out. They also lacked dynamics when brand new. I think the RS-1's may have a slightly larger earpiece, which should equate to a little more bass and the RS-1's may still come in a nice looking wooden case. The RS-1 may also come with an extension cable. The prices you are quoting for either combo are good deals.