Model D C2, PM4 interface - $1000
Rowperfect (info from Durham Boat Co.) - should be available late summer, most likely in $2000-$3000 range
Oartec (info from company elsewhere on this board) - $6000 Australian = ~$5000 U.S.
This says nothing about the qualities of the machines, pros-cons, who should buy which, etc. Obviously though, someone like me who wants the machine for total body fitness, who gets on the water rarely, and who isn't finacially loaded is less likely to spend $5k than an elite-caliber on-the-water rower. Now, if I were loaded, I'd probably look seriously at the Oartec and put it in a gym with a 60" plasma TV, Blaupunkt stereo, personal masseuse for after the workout, etc.

In any case, competition is always a good thing. Hope the entry of more companies continues to push everyone's technology and prices.