The Patriots have clearly been the team of the decade, and they look strong once again. And since NFC and AFC teams only play each other every four years, and at alternate sites, this will be the Vikes' only chance to play the Pats in the Dome for the next eight years (and with any luck getting a new stadium, this could be the Pats last trip to the Dome).
If you root for an NFC team but still follow the AFC, you've watched the Patriots' dominance of the AFC with some sense of distance. During the Patriots' current reign, the Vikes only faced the Patriots once, in 2002, when it was a down year for both teams (though a down year for the Vikes meant 6-10, and a down year for the Pats meant 9-7 and just missing the playoffs). For Viking fans, this might be our last and only chance to see the Vikes go head-to-head with the dominant team of this decade. If the Vikes win, it's something we can remember for a long, long time. It could be a sign of great things to come, this season and future seasons.
The Patriots are still the premiere team in the NFL, and NFC fans don't get many chances to see their favorite teams face them. So when you get the Patriots playing at your own place, and it's Monday Night, and you're 4-2 and they're 5-1, that's something to be really excited about.