I've been to 2 NY6 bowl games that Iowa played in and several New Years Day bowls. I don't waste my time or money going to bowls like the Holiday bowl or Camping World Bowl. I would say the one non major bowl game I would go to is Nashville, just because of the city would be a blast and the proximity.
Kind of in the same boat. Been to a handful of bowl games and try to go a bowl game very couple of years or so unless it is a NY6 game or handy location. Been to three NY6 games and four other ones over the years.