The best
part is that it does not need the extra maintenance and expense that a 4
stroke requires

What extra maintenance? You mean the oil change? 10-30 is a lot cheaper than
TCW-3 and I don't use as much. That leaves me with unscrewing a filter. Plugs
will last a whole lot longer on a 4 stroke. I had mine replaced at 400 hours
but I am saving the old ones, they look brand new.
If cars are any indication a set of plugs on a FI, 4 stroke burning unleaded
should last at least 1000 hours.