Worth $3 for three of them.
You can ask at the bank and they often will have fresh packs. Set a few aside in a non PVC currency holder if you wish. They will go up but slowly.
Now should the Feds drastically change the design of the $1 note as they did with anything from five on up they'll increase more dramatically.
Star notes are better as mentioned and it really boils down to how much you're willing to set aside at little or no return on investment.
Gotta admit I got carried away. Got more notes from 1995-2001 than I really need.