The DVR's cost so much more than HD's because they have more to them than just a bare drive. It has a controller to tell it when to record, skip, FF, RR , remember your favorite shows etc. They will come down in price also. What we have been seeing is an increase in available space while the prices have not been going up. I have a two year old DVR that cost me over $500 and it only has 80 GB. It would cost about $200 for that size now. A $500 unit now would have 160 GB capacity or more.