I'm asssuming when you say who cares about DVD's you are lumping Blu-ray discs in with them too. Based on US streaming video liscencing, I'd say anyone who actually likes movies/shows but doens't want to go to the theater. Most movies hit DVD/Blu-Ray way before they get onto a streaming source. Not only that, but there are a ton of great older TV shows that aren't streaming (like Get Smart, which I'm waiting for Season 2 disc 5 for the last month).
To top it off, their HD streaming is more like DVD streaming. Blu-ray offers me 1080p video along with crystal clear 5.1 surround sound. No one can touch that yet with streaming but Netflix theoretically could thanks to SRS adding support to silverlight for 5.1 surround.
Great that you have the service though. I love it myself and stream about 8 shows/movies a month along with renting 8 discs a month.
