Honestly, I get to see about 98% of what I want with NFL RedZone - it's like NFL-ST, but with only one channel with an invisible person flipping between all of the games when the action dies down or commercials come on - not just when a team's offense is in the "red zone" as the product name implies. And my current provider is only charging me $5.50/month for it plus a bunch of other sports channels I could care less about.
I suspect you live in market as your favorite team. If you live in market as your fav team, all you need to supplement that is RZ.
The #1 attraction to NFLST was, and always will be, being able to see your fav team if you live out of market. We live in a time when people relocate more than at any other point in American history; combine that with football being the overall #1 sport and passionately following your team, that's what NFLST is all about. I wouldn't have NFLST if I was lucky enough to move back to home area; like you, I would go RZ only.