No one has ever claimed than Aerospokes were actually aerodynamic. So, I'd mark "Aerodynamics that pay off at higher speeds" off your list. And unless you are cruising at 25-30+ MPH for significant periods of time, aerodynamics shouldn't be a concern anyway.

However, you *will* feel the wheel's weight 100% of the time when climbing hills. You will also feel the wheels high moment of inertia every time you start and slow the bike. The former for any bike (SS or FG), the latter only applies to FG bikes.

In my experience, there is no practical reason to get one. But, if it makes you happy and makes you get off the couch and ride your bike...those are really good reasons, too.