He says he still loves the game after 12-plus seasons. Plus, he's having so much fun playing the Bears; he might as well stick around for a few more years.
Favre has an 18-4 career record against Chicago and is 9-1 at Soldier Field, the site of Monday night's showdown between the Packers and Bears -- the NFL's oldest rivalry.
"I shaved (the other morning) and all the whiskers in the sink were gray," Favre said. "That makes me feel old."
Favre, who holds the NFL record with 176 consecutive starts for a quarterback, needs just 131 yards passing to surpass No. 5 Dan Fouts on the NFL's all-time passing list. He also would tie Joe Montana for fourth place with 117 wins on the all-time list if the Packers (1-2) can knock off the Bears (0-2) on Monday Night Football.
Green Bay is 16-2 against Chicago since 1994.
"Don't make the dude mad, that's all I'm saying," Bears quarterback Kordell Stewart said about Favre. "Let him stay calm and comfortable and relaxed because he has a knack for holding grudges and going out and proving himself on Sundays and Mondays."
Favre, the only three-time NFL MVP, threw for 580 yards and five touchdowns in two wins against the Bears last season.
"Yes, Brett always strikes the fear of God in you because of what he's capable of doing," Bears defensive coordinator Greg Blache said. "Last year we had some young defensive backs that didn't believe he could throw it 80 yards in the air, and he did. He can still do that."
The thing is, Favre's still only 33. While some think that's too old for an NFL quarterback, Favre is still younger than some guys around the league, like the Jets' Vinny Testaverde (39) and the Bears' Chris Chandler (37). He's also still producing.
"He's taken care of himself, and I think that living in Mississippi, drinking that swamp water has helped him," joked Green Bay coach Mike Sherman. "He's a resilient guy. He's big-boned. He showed me pictures of his ligaments and his knee last year, and you would have thought it was an Olympic weight lifter's. He's a durable person."
Favre's consecutive games streak started 11 years ago, while 164 other quarterbacks have started an NFL game. Ironically, during that span, the Bears have started the most quarterbacks -- with Stewart being their 15th. Favre has been a Bear hunter as much as anybody has during his stellar career. He's thrown 19 touchdown passes at Soldier Field -- the most at any other venue except his home stadium at Lambeau Field.
"I wouldn't tell any young quarterback to emulate the way I throw or play," Favre said. "To say I'm a dying breed would be incorrect, because I don't think anybody's (ever) thrown like me. I'm not tooting my own horn, but the way I play -- my mechanics are the worse you've ever seen when you watch on TV or film.
"But you can't argue with production. To me, that's the bottom line."