I believe that a CPO AP1 RWD Model S85 (many will come off 3-year leases now and for the months to follow) is an excellent bridge car for the next 2-3 years. Figure those off-lease cars will have close to their allotted 45,000 miles (within 10K either way, typically), and will have included ESAs through 100,000 miles. That gives you a solid 2-3 years of mileage *under warranty* with AP1 stability.
The kicker is that these cars can be found in the $45K-$50K range. There was a pristine P85+ with every option and only 28K miles for sale recently - obviously a unicorn like that will cost more. But for yer average garden variety moderately-optioned simple S85, sanity prevails.
So there's another option to consider. Supercharging is included, the depreciation is largely accounted for, and it buys you time. Figure you could drive the hell out of it and it would still be worth $15K-20K to somebody once you're done with it.
In 2-3 years' time, there should be a) a useful AP3.0, b) a nifty batch of new features as part of the refresh(es) and otherwise, and c) maybe even a compact SUV or pickup truck to consider as well (be still me widdle heart).
Having now seen a few Model 3s up close and personal, they're fine cars, and will only get better. However, if you drive a lot and live in a state with high per kW costs as I do, included supercharging is worth $6K-$9K over 3 years and must be accounted for.
So there's that.
Good luck.