I got the Blu starter kit, which I was quite pleased with when I first purchased it. I started running low on carts and decided to pick up a disposable Blu. The difference was quite dramatic. Instant throat hit + more vapor = me happy. I would like to try something a bit more like the blu disposables but with more bang (also the price is a bit steep). Any suggestions would be great. I have very limited experience with e-cigs, and I do want to go the more economical route of refilling carts. The low battery life on the blu, as well as the lack of vapor and "hit" are a little frustrating. Help?