The MillionMileSecrets guy has an interesting post about getting a shitload of Hilton points. basically both Hilton Cards give you 40k after some spend. But, if you sign up for the Hawaiin air card you get 35k HA miles which transfer at 2:1 to HH so you actually end up with 75k HH. There are two HA visas and I don't think there is a spend to hit. They do have annual fees of $79 each. So, basically, for $160 you get 70k HA miles which will transfer to 140k HH. Not as valuable as 140k Hyatt or SPG but it's something. Would get you almost 6 nights at the Hampton Manhattan or almost 3 nights at a top tier Hilton.