Can totally relate to this.
Used to play in bands not playing my sort of music but just because they were the people I knew.
Move to a smaller house, put the bass away, never got it out. stopped playing for years
then moved again and this time left the bass where i could pick it up on a whim and got back into playing it more an more.
I will absolutely never gig again unless its doing exactly what I want to do, I have better things to do that hang around until a pub closes and then lug a whole load of gear around, and getting to bed late, for apprximatley peanuts (short negative rant over)
.. and like WhiteCloud I think you actually get better through not playing... its to do with relearning/reinforcing the good techniques while losing the bad habits.
My advice
Sell the AMPs and play through an irig or PC speakers or practice amp then if you decide to gig again newer better amp models will be out. Then only sell the PB if you absolutey have to.
and keep the bass easily accessible and remember there's no rush no ones forceing you to play, only do it if you enjoy it.
(ok there is a Rush - and their pretty good too )