The most common newbie question I'm sure

[Anton]

I want to get into this bikepacking thing, and I need to buy a new bike for that. I am aex backpacker who cannot continue backpacking because of back problems. But I can ride a bike just fine.  I have been commuting to work by bike all my life, enjoy random 10-30 mile trips (asphalt, usually) on weekends, and have recently been enjoying single track mountain biking.  Aspirationally this is a bike for single track bikepacking.  But in reality usage is more like to be:

   bikepacking single track :    10%
   bikepacking gravel:   10%
   bikepacking asphalt   10%
   day trips single track   10%
   day trips gravel      10%
   day trips asphalt   10%
   commuting, asphalt   40%

What I care about most:
   comfort,
   price/value
   low and easy maintenance

What I don't care about:  speed, "performance", etc. I just want the cycling equivalent of backpacking.

Suggestions?