I picked up the season pass for BL2 when it was $22.50. I was going to pass on it but remembered that I had a $2.50 credit on GMG from buying BL2 at $40 and getting it price matched to $37.50. My out of pocket payment was $20, total cost for BL2 + Season pass was $60.
I'm content. I think I can stomach paying $5 per DLC pack.
99gamers.com-Going down in flames after discounting their currency! Kickstarter "Game Developer"!