Been flying electrics for a few years now. Cheaper than glow ? No way...but I do like my electrics. I still have 3 glow aircraft and will probably always keep 2 or 3. I just converted a pattern ship. Took a $ 90.00 OS .46 FX off the nose and put in about $ 800.00 in motor , batteries and ESC. Also a $129.00 Astro Li Poly charger. Then another bunch of odds and ends that run the bill up over $ 1000,00 . Lost one $45.00 pack after 3 charges....a hard landing wrinkled up another and I was afraid to use it anymore. BTW , I have 10 packs......in a 5p2s configuration. Those require a lot of maintenance. There is no way that I can justify either cost or convenience. Just like it. I do , however , agree that small park flyers are very convenient, but the headaches begin when you get into high voltage , high capacity multiple packs. But , as I said before , I like it. :-)
My .02 cents worth.
Ken Day