What can I say, I'm gadget-happy.
I admit that I don't replace the desiccant packs in my tubs of seeds often enough. Sometimes they get as "damp" as 50% RH which I try to stay below.
Why? I don't know, I'm not a seed bank and I don't have anything especially valuable except for some Schochler watermelon seeds that SSE finally offered to the public.
But maybe I can get some seeds to stay viable for more than 5 years, instead of 2-3 years. Or 10 years instead of 5. Why? It's a challenge, I guess.
I enjoy the process (some call it "fiddling") at least as much as the result.