I've always run my numbers on Model 3 with the expectation of a $50k price tag for a well appointed car. Tesla is aiming for the BMW 3 series so it's a pretty safe bet to expect prices very close to what those sell for.
In any case, I fear that Tesla will do the limited sig series and offer them to existing owners first and Model 3 won't be in any kind of volume production runs for at least a year for those wanting to buy a "normal" version. For me it might mean buying a used S85 as used cars should end up being in that price range in a couple of years.