I do shorter cooks in my offset. I have a couple friends in the DFW Metroplex both have high end offsets Shirley, Jambo, Big Phil’s etc. the heat humidity index can easily be 105-112*. Both have told me on long cooks they’ll do the first 4-6 hours on their Offset and either oven finish or use another cooker. One does a lot of pork butts for friends and neighbors. He smokes offset to 165-179 IT wraps in oven safe cellophane for a couple days in fridge then oven finishes. I have a low cost offset called Oklahoma Joe Highland. It would do great in those 10-12 hour cooks, I just don’t want to.
Keep it and do shorter cooks for a while see if you fall in love with it again. Even if you use it as yard art chiminea an offset screams real bbq