I agree, get the best camera for the best deal. If you can afford an OM-4T(i), then you're buying younger electronics, which will more likely give you a longer run before it craps out. I bought a near-mint OM-4 for $100 USD a few years ago. The Ti's were going for 3x that at the time. Mine has a little drain issue, but not as bad as my OM-2s. If I forget and leave the battery in and not put it on manual 60, it will last about 3 months. I buy batteries in bulk so I always keep several in my Olympus bag, just like I bring extra film. It's just a habit and part of the process.
I shoot with many different cameras, so I'm not relying on the OM everyday. If I were, I would just count on changing batteries more often and move on. I shoot on other cameras that totally rely on batteries, such as Canon T-90, NIkon F4s, Pentax K20D DSLR, etc. I'm always changing or charging batteries on those. I have to charge my iPhone almost every day. I have to replace the batteries in my smoke alarms twice a year. I have 14 remote controls that always need batteries. My profession as an audio engineer has me changing batteries in portable recorders and wireless mics several times a day. We're always changing and charging. I think the fact that the old OM-4s draining batteries is over-hyped in today's world. Most people had a problem with it back then because the OM-4 was different than its predecessors, when we weren't yet accustomed to having to re-charge everything. Yes it was an electrical design flaw that they eventually fixed. But look at the rest of the camera - it was a ground-breaking work of art. The moral of the story is we live in a charged world. We're used to battery drain. Accept it.