And now, my counter-argument. (Keep in mind that I used to recommend Wally all of the time. So, I have nothing against the Wally, but I am now in the business of selling my Hopper Duos.)
Wally lacks PIP capability, and also lacks the new Gallery app. Hopper Duo has both of those.
With a subscription to satellite-delivered locals, Hopper Duo can record the four major networks (ABC, CBS, NBC, Fox) simultaneously, using only one tuner. Wally lacks that capability.
Existing recordings can be transferred from ViP DVR's to an external hard drive, and can be played by (and/or transferred to) the Hopper Duo. Those recordings would be incompatible with Wally.
I can beat the prices listed in the post above:
Hopper Duo - I am only asking for $50
OTA adapter - I'll provide that for $20 (the older Hauppauge model though, not the AirTV one)
No upfront $40 DVR fee
Dish no longer charges that fee to new subscribers with Wally. However, they do now have a $7 per month fee for the first receiver. (At least, that is the rate my sister got as a new subscriber this year.) That $7 first receiver fee only applies to Wally, not any model of Hopper. Hopper Duo's DVR fee is $10 monthly. So, a $3 difference for more functionality.
Hopper Duo has an internal hard drive. So, no expense for external hard drives, unless you want to archive.
54-series remotes - I'm asking $10 each
Hopper Duo has built-in Wi-Fi capability. Wally would require an adapter for Wi-Fi.
So, let's see: $50 + $20 + $10 for one spare remote = $80 upfront, and all of the equipment would still be owned. Dish would collect $3 more per month than what they charge new customers with one Wally. ($10 DVR fee for Hopper Duo vs. $7 first receiver fee for Wally) Hopefully, the Hopper Duo has enough additional capabilities to make the extra monthly money worth it.