I think guys think they are Gucci Boys flying jets and have to spend the most money they can on servos and so on. I have had high end JR servos fail multi times in my race planes yet the 20 dollar servo from HK with same specs hasnt failed yet.
I think with most servos and batteries you need to cycle them several times before use to make sure they are good to go.
I also see guys with 300 dollar airplanes and still have a 15 dollar switch, but do we realy need that 200 dollar switch? I think it comes down to routine maintence on our planes. Know your equipment.