My wife and I flew to Wisconsin for the NY Giants game, and were simply blown away by how nice all of the Packers fans were.
Even during the tailgate, everyone was very welcoming offering us food and beer.
I loved the Lambeau experience and then some. Kind of wish it was our home venue as nice as the new Metlife Stadium is.

The seats we had (113, row 43, seat 7&8) gave us a great view of the end zone. We were on the 10/15 yard line area and any seat along the sideline allows fans to see the entire length of the field without obstruction. Having 50 yard line seats would have been nice but I honestly don't think it would have made that much of a difference. The seats in the 300 sections are all individual seats but are also more expensive. They're much smaller sections too and seemed to off a superior view of the field. 70% of the stadium is bleacher seats which made Lambeau seem more like a college football stadium at first but once the game got started, sitting on bleachers quickly fell by the wayside.
Our ticket set us back $400 so I wouldn't expect any bargains when trying to see the Packers play at Lambeau. The wait list for season tickets is many years long and not everyone wants to sell their tickets on Stubhub. I didn't see too many ticket scalpers on the street that day. There was a local broker who had an office near the stadium called Ticket King and there were fans entering and leaving their offices that day.

Outside of the stadium, skip the Bart Starr Plaza Tailgate Party - it is $25 per person and features the same things you can get from the Tundra Tailgate Zone, adjacent to the stadium which is free for fans. If you're looking for the Curly Lambeau and Vincent Lombardi statues, they're on the north side of the stadium near the Atrium/Miller Lite gate.