We get ours with the HHonors Surpass card. Athough it's the cheapest form, in which you pay $27 per visit, I like it because I pay only when it's useful to me. I travel less on business than I used to and the TATLs are in Business, but I used PriorityPass just last month at ORD.
I do agree that membership never recovered its luster after they dropped their relationship with the Delta Clubs.
Next week we're going to be in on Coach trips within Europe and they have Clubs in both Valencia and Palma de Majorca, where we'll be. There may even be one accessible for our ZRH-MAD flight. At $54 for the 2 of us we won't use them every time, but it will be good to have the option.