I'm well over 200lbs, and that seems... excessive... for a mountain bike.
Don't get me wrong, I've had issues with lightweight, road bike components. I specifically had a wheelset that lasted a month. (The manager at the store who sold it to me was kinda pissed, saying his employee should have known better, and gave me the value of that wheelset towards a more expensive one that's been fine since) But mountain bikes... they've been rock solid.
That said, I don't get airborne intentionally that often (or that high), so if you do, maybe. But good stuff should last a while.
ETA: Chains and pads are wear items that I expect to have to replace, so keep those out of that thought.