I can't disagree with you on the nitro. I completely got out of them and went all electric for the majority of the summer. I couldn't hold back anymore tho, I had to get another nitro heli! Once it is in your blood, it tends to stick. As far a electric equipment, there are some chargers/ power supplies out there now that are very reasonably priced. Batteries are really not much more expensive than nitro... If you fly say 2 gallons a month for 5 months out of the year then your cost is about $300. Lipo batteries on large electrics will run you somewhere in the $300-500 range. Only difference is this cost is up front instead of spread out. Now if you buy more than one set or if you crash and ruin a set then yes the cost can be more expensive, but you also run the risk of ruining an engine or pipe in a crash which is also quite costly. Just something to think about. Hopefully you get a chance to check out an E6/7 in person sometime soon and get to see one fly.
Best regards,
-Steve