I also became an NFL fan by watching the Browns, while the Giants were continually available, there was something about that storied franchise with Jim Brown that caught my eye. Also the influence of my best friends father played a huge role in helping me understand the game who was a Browns fan. Stayed loyal to Cleveland until the Jets won the Superbowl in 1969, then I knew the AFL was for real, so I became a die hard Pats fan.
Some of the early escapades of the Pats did not entice me to become a loyalist, many incidents verged on comical. No home, recruiting players from the stadium etc. etc.
One of the worse episodes as a long time fan was in the 90's when I would go to work on Sunday and all the Giants fans and Dallas fans would be there in their "puff coats", there was no Pats gear available... in '85 there were a few "Squish the Fish T-Shirts" available, but that was about it. I always brought my walkman to work, as the games were blacked out due to low attendance. Admired the jobs that Gil & Gino did announcing in the 90's. Guys I worked with thought I was a degenerate gambler, but I was just an avid fan.