Out of warranty powertrain experience

[eprius]

My model S is coming out of powertrain warranty next February. I'm sure there are some people here that have owned their vehicle out of powertrain warranty. Just curious to see if you could share your experience. The drive unit and battery are the most expensive parts of the vehicle and just wanted to see what someone can expect to deal with out of warranty. The first generation 85 drive units were notorious for issues and I am still on my first unit with 40k on it. The battery is still holding charging with 253 miles at 100%. Like all batteries, they do eventually go bad. Just seeing what I am up against. I hear the 85 batteries are $20g + from Tesla and the drive units are getting closer to $10g. The battery is the one thing Rich Rebuilds shop is hesitant to touch so a used battery seems out of the question as it seems to cost more for the mechanics to code the vehicle properly.