Well I'm waiting it out too. In fact I ordered the gimbal from Fry's last night - they tell me "delivery on or before 9/21," I'm assuming this year. So more waiting. Maybe the first firmware update unlocking features we were expecting last June will be out by then!
I paid $149 for the case, bought an extra set of props, an extra battery, but already had a GoPro 4. So it only took me a couple of hundred bucks to feel invested enough that I can't justify returning the Solo. But I did buy it a P3P which it has enjoyed setting next to on the shelf at night, listening to the P3P's stories of flying and having a gimbal from birth...