And since they'll be cheaper than the new 6Gens (the 8 gig refurbs are only $99 last time I looked), with more functionality, they'll sell very well indeed. I think Apple will find the refurb 5G nanos just as hard to keep in stock as the 2G Shuffles, which flew off the virtual shelves as soon as Apple posted new refurb stock.
I bought a 5g nano refurb within minutes of the announcement. Sadly it's still in China. By the way did anyone else notice Steve completely skip the description of the 3g Nano during the presentation.