2009 Subi Impreza 2.5i Sedan Base Model

[Wise Seeker]

I'm driving a 2009 base model automatic (not CVT!) Subi Impreza 2.5i sedan (not WRX) and it has 137k miles on it after 15 happy stable driving years. It's had a few $$$ problems but I keep it 100% maintained. How many more miles might I be expected to keep it running reliably before I should trade it in? And it's funny, so many people are obsessed with power and acceleration performance, I'm so used to the sluggish acceleration and the sometimes jerky gearing up of this car that it doesn't bother me anymore, and the stability and twisty road handling and tight suspension more than make up for the lack of "performance". Plus the seats fit me like a glove. No backup camera, no driver assists, no GPS, no controls on steering wheel other than cruise control. It's just a pleasure to drive. Thoughts?