Given that I never found Star Trek to be popular when growing up, especially TOS, but could pick up books at local library, secondhand stores and such I have not experienced this problem.But what if TOS books are no loonger available, you have compability problems with VHS players and new TV:s and Star Trek DVD:s are no longer available due to Star Trek not being popular anymore?
Nope, I don't.You must always expect the unexpected and have a "Plan B".
Mileage may vary but never has my ability to access Trek dependent on such nebulous concepts as "popularity." And I grew up in a rural area with a small library, which is far different from now when I can find books online without difficulty.