There have been many theories about the excessive oil-consumption:
Oil pumping at the rings,
PCV,
Valve cover (this one happened on my Dragon),
Gremlins,
You name it.

If a $3 PCV valve is all that is required for "trouble-free" engine operation, than we'd all be in agreement.

Better to spend $0.75 on a rag and keep it under your seat. Check your oil at every fill-up and you'll be fine.