Probably a smart thing to do if you can afford it, and if its reasonable.
I have never paid for access in my life, except donating to AccessYes in Wyoming. My wife and I have donated $4k+ to it since moving here in 2000. A few years we were in the top 10 private donors to the program. I would rather spend money on access for all, versus just access for myself.
I don't do it out of principle and also because it just seems to create more and more of it and pretty quick that's the ONLY way you're going to gain access.