I'll add my few thoughts:
First was not creating an awareness of VOOM. I'd have run that short "ad", of the eye catching VOOM logo coming up as flowers through the grass, on every national TV feed I could afford (that few seconds even looks good on my regular TVs). Create a mystique of "what is this all about".
Second, I'd have gone with a leased equipment plan from the start too. Figure most HDTV buyers have just forked out thousands of dollars for a TV and if they have D or E or cable already, why make a move (until you realize you just crave more HD). I took VOOM for the $1.00 install and leased equipment (and got hooked and would have kept the service for years), but I couldn't have purchased all the VOOM equipment/install after buying, and stretching my budget, for my Pioneer Plasma.
Third, I had a very good install, but I understand how having a poor install program could have hurt VOOM.
Fourth, the DVR (as a lease) was I think essential, but it was better to bring it out later when it worked rather then too soon and piss everyone off like E did with their first HD DVR.
Fifth, all of the above probably could have been less important or corrected if the Rainbow 1 satellite and uplink center were still available. I still don't know how C. Dolan let that happen if he had any thoughts at all of keeping this thing alive.