Yes, it's easy to unwittingly climb the heat ladder, the nature of addictive substances.
Dave's isn't insane to me, but like most hot sauces based on the capsaicin extract, it's flavor is a bit to 'chemically' to my tastes. I was surprised to read that it only rated 87,000 or so scoville units. I had thought it was hotter than that.
The hottest wings I had were at Crossroads by Rt 83 and North ave. in Elmhurst years ago. They brought out the bottle of concentrate that the sauce came from. They had to dilute it quite a bit before using it on their hot wings. They claimed that if they spilled the concentrate, it would eat into the concrete.
UniAddict, if you like habeneros you may want to search out the Bhut Jolokia chili. They are to habeneros what habeneros are to Jalepenos. I've never had them and I think they would be too hot for me, but I'd at least like to smell them.