When you say the BGE is overkill what do you mean?
With both the BGE vs the Weber Kettle you will have to start charcoal.
With both the charcoal has to get hot, does the BGE take extra work here, to heat up the vessel?
From what I read the BGE can hold a fire longer with the original charcoal, vs the WK you have to keep adding charcoal. As I don't own a BGE I have no idea about how well the BGE uses fuel.
The BGE will maintain temp better due to the insulated Vessel, and tight seal.
Both have to be cleaned afterward including the grill and removal of the charcoal. I am not sure how the BGE works for this, the WK may be easier. I have the cheaper 22" and simply have a charcoal box, and turn my Kettle over and dump any remain coals there. If any charcoal is reusable I remove it first. Models of WK with the sweeper fins have big slits and you can easily use the sweeper fins to remove the remaining coals.
Is the issue size, do you have the smaller BGE and need a inexpensive way of cooking more meat?
I am a proud owner of the smokey joe and the 22" weber kettle, plus a weber genesis gas grill. So I would highly recommend these products. But my understanding is the BGE is like a huge jump in efficiency and features that basically does the exact same jobs the weber kettle can do?