Keep Power Functions or retrofit to Powered Up

I recently obtained a couple of Power Functions trains second hand. I’m more newer to the hobby, so I’ve only had Powered Up before. I’ve got quite a few spare Powered Up motors and boxes laying around and wondering if when I rebuilt these older trains (which have been dismantled and washed) should I do it with their existing Power Functions components (which all work) or should I retrofit with Powered Up like the rest of my fleet? submitted by /u/pmci3777 [link] [comments]