it’s an interesting question, I share your situation some.
Live in Switzerland, good access to alps and lots of bike park stuff, as well as lots of natural trail riding. Built myself a Mega as a mini DH bike, with the aim to get bigger and bigger.
37yrs and 3 kids, + only income play on my mind somewhat when on some horrific narrow rocky bit of trail that is trying to pitch me over the bars, or flying off a jump and getting it a bit wrong with feet flying off the pedals.
Other bike is a El Capitan (29er full sus), which is bob on for pretty much everything, so thought about getting rid of the mega. But, it does have a role, and is great in the alps, sooooo…
My advice, based on my situation (and did you really have to ask) – have both! (and he other bikes… ahem).
You want the ideal fun bike for local stuff, and if you are going bigger-ish, you will regret getting rid of the stereo.
HTH!
Kev