LiPos are expensive, and I only have a small charger. I can deal with that with the EasyStar, but the MiniMag is a bird that drains a LiPo or NiMH faster than the EasyStar.
I can get 30+ flying time on one 1.6A 2S LiPo with the EasyStar, but a MiniMag will do maybe 10 minutes on one pack. Besides just getting the plane down and refuel it for another 10 minute+ flight, I hate having my engines on the shelf

And, rephrasing a known line, with greater power comes great flying on windy weather[8D]. Speaking of which, calmed down after lunch with a slight breeze and sun all over the place[:@]