Oh right, I forgot about that program where Directv is forcing you to convert to C31s. Yeah, I guess I'd be pretty miffed about that.
Convert, no. I would wager a bet, however, that as soon as the C31 comes out and is verified to be working correctly, the new customer installs will no longer be a HDDVR and three HD receivers. It will be an HR34 and three C31's, which is theoretically the same tuner count, and monthly subscription cost. It will save DirecTv a LOT of money in the future. Smart move on their part.
The problem lies with those customers who require more than two recording tuners. For those customers, the C31's taking a tuner from the HR34, might be a problem where a second HDDVR would be a better choice for them.
As long as DirecTv allows a person to configure their system to meet their needs, all should be ok.
As VOS points out, however, I still disagree with the monthly fee for the C31. If people are willing to pay the $6 for the C31, and another $3 for the cable rental to use it (MRV fee) ($9/mo total for the first one), then more power to them.
Tivo Premier XL4, Tivo Premier, Tivo HD whole home on Xfinity HD, SageTv 8 TB Win7 Server -> DVDO Edge-> Denon AVR, Klipsch KB15's/Sharp Aquos 60"