As someone said earlier here, once they allow 2, folks would want 3 or 4 or more. so figure a "regular" 4 TV set up "now" and "then" I'll use DirecTV's regular receiver lease prices as comparison
1 Genie $300
3 minis $100 x 3 $300
1 SWM LNB $39.00 (according to SolidSignal)
Total $639 on hardware cost for a total of $18 in receiver fees
4 Genies $300 x4 $1200
2 SWM16 @ $105 each $210 (according to SolidSignal)
Total $1410 on hardware cost for a total of $18 in receiver fees.
Now if customers were willing to pay regular lease prices for hardware, instead of calling and threatening canceling to get free equipment, perhaps DirecTV would be singing another tune
If they allow more than two genies I have always figured you won't get a third one for free no matter what' the second one might be might not be. But not just the genie after the second one, but cost of materials for swims etc too...