People seem to forget about the time when we all flew with analog servos ....Thinking about it I had a BVM F-4 that had only one digital servo among all and guess what ....it had one receiver one battery pack simple JR switch and flew great... If one carefully pick out his required servo needed for a particular installation you can go analog no sweat ...one doesn't always need super holding power ...30 kilo servo ....the outcome is you can skip the power-box systems dual batteries and so , not to mention that analog servos cost less even from known brand manufacturers compared to their digital ones....I operate RPV's and many of them don't have digital servos and I can assure you these things operate for thousands of hours... I'm sure getting back to basics can save that much to everyone of us..

My two cents too.