I have no idea how much you are saving per month, but you seem to feel that your decision is best for you. However, the Channel Master DR+ costs $249 with the added expense of an external hard drive and then how ever much the Roku per television set and the added monthly cost of which ever services you use the Roku for such has Netflix, or Hulu Plus or any number of similar services. Unless, of course, you are using a service such as Vudu charges per episode or per movie. I was very tempted to do the same thing that you did, but by the time I added up my possible savings, I found that my month charges were nearly as much as my $60 monthly Dish charges were. I did get a Roku and a Netflix subscription, a lot of content for merely $8 a month and I no longer think about any premium channels. I would be interested in hearing how well you are faring in a few weeks without the cord.
I paid about $50 each per Roku 2XS for each of my 3 TV's. I got a Polk Audio XRT12 on Ebay for $85 for XM. I had an extra Western Digital MyBook 1TB HDD laying around which I used with the DVR+. So, the only item I bought "brand new" was the DVR+ which so far has been well worth it