Sounds reasonable to me what you are doing.

As others have said and is well known, most engine wear is at start up, my thinking is to have a really well charged battery on my 300ZX that sits in the garage, oil has drained well out of it and the battery could be weak (with a little alarm load etc.), so a weak crank can lead to more low oil pressure revolutions then if a very strong battery allows a nice snappy start, getting oil pressure up asap.

So I run a Ctek trikle/charger now, and it springs into life snappy like a new battery all the time, probably wont make a lot of differnce other then the warm fuzzies I get.

Just a thought on how good mainatnce in one area can help a seamingly unrelated area.