Couple comments, after 4 hours you don't need any more smoke so don't worry about that limitation. I started out with an an entry level smoker and it's what got me hooked. I quickly decided to upgrade in order to get the product I had in mind. Most competitions don't allow electric or gas smokers so if you want to go that route you should know ahead of time. Most likely you too will have a desire in the future to buy something new and different after getting started with this unit. Or, like some, will decide this is a lot more work than you're willing to invest and frequent the local bbq joint. Just my two cents.
FEC120, XL BGE, DigiQ DX2, UDS, Cimarron, Weber Jumbo Joe, Grill Grates, ThermoWorks RT600C