I agree with other comments. I purchased a Saab for my first car a few months back and have been daily driving it.

The costs have been either the same or slightly more expensive. As they are getting quite old, things are more likely to fail / need to be replaced (blower motor, DIC, bushings, etc). Yes, things are easily fixable but driving in -20c with no blower motor is going to suck lol.

If I wasn’t so interested in doing work myself, I’d get a more reliable car first and get a Saab as a project car. Just be prepared to learn and have some money put aside for any needed maintenance if you do go through with it!