So, right now, it costs you a grand a year in repairsto keep going. A new vehicle would cost you a grand a year just in taxes, PLUS everything else. And you're not enthusiastic about the new vehicles?

If you want to move on to something new, that's not unreasonable. But it certainly doesn't sound like cost is the reason to do it.

I'm personally quite enjoying my recently acquired 6MT.

__________________
2011 M3
2006 Sierra 2500HD 4WD LBZ/Allison
2004 X5 3.0i 6MT
1995 M3 S50B32
1990 325is
1989 M3 S54B32

Hers:
1989 325iX
1996 911 Turbo