Well, multi-room means different things to different people. The Dishnet/DTV multiroom is nice because each room can watch different programming from different sats/polarities, but of course you have separate receivers in each room. That's usually not possible with big dish stuff, but you can still have signals in different rooms if you don't need to have different programming in each room. Ie you can just run A/V or RF lines to each room, or, for the FTA stuff, you can use a computer card receiver, and send the video via local network, which is what I do.
Dishnet/DirecTV is certainly convenient, and there are more channels available, but even though those 2nd rooms are often free
installation, you generally pay extra per month.
A 4DTV gives you both analog (VCII) and digital (DCII) subscriptions, plus the free (ITC) analog, and free (FP) DCII. There aren't as many channels available, but the quality is usually better. The 410 subscriptions are just a subset of what's available via 4DTV, and a regular analog receiver can usually be used to subscribe to analog (VCII) programming.
Of course there isn't much analog VCII stuff left, as most has gone digital, and most remaining VCII stuff will probably be gone in a year or two. The same might be true for the DCII stuff available with the 4DTV/410, because they really don't have enough subscriptions to support the cost of putting the feeds up, and the only reason they are still putting up as many channels as they are, is because some of these signals are already being uplinked to cable companies, etc, but I wouldn't be at all surprised if the DCII stuff dissappears in a couple years too, so I really have a hard time recommending paying for an expensive 4DTV, when there is the chance that it could be a poor boat anchor in a few years. Of course they've been saying that for years, but there has been a decline in big dish subscriptions from millions down to a couple hundred thousand I think, and constantly getting less and less, and I just don't think they can keep supplying these channels with so few customers. This doesn't mean an end to big dish or analog or DCII, just that I don't think the subscription services can survive.
Just my opinion.
Personally, I subscribe to DirecTV, mainly for NFL Sunday Ticket, CNN, and a couple other low quality cable type channels where the low quality of the DBS signals doesn't matter. All my quality viewing I do either OTA or via free feeds on big dish. I no longer subscribe to anything over big dish anymore, and just use the big dish for free things like NASA,
PBS, and sports feeds, and the occasional premium things that sometimes go FTA.
But if you're planning to subscribe to subscription channels, I'd recommend looking closely at what channels are avialable, because
DTV has some channels like NFL Sunday Ticket, that no other service has, and Dishnet has a few that only they have, and the 4DTV channels are missing many channels available on the DBS services.