All Weber products cost more than the competition, but they are built to last. They have been around since just about forever and have a very loyal following, of which I am one. My first Weber was a Smokey Joe portable, which we used while camping, and ultimately the family demanded that I buy one for the house. I have owned several since then, including a somewhat rare propane kettle, and now I am down to three...two for the home, and one for the motorhome.
The design of the kettle is such that food cooks very evenly, so that even a lazy BBQ'er such as I can throw a steak or a hamburger on the grill over indirect heat and turn it every 10 minutes until it is done to perfection. Add some smoking chips and it will turn you into an instant gourmet chef.
One of the most useful accessories for the kettle is the rotisserie, which costs as much or more that the kettle itself. I have already worn out one motor on ours, but I found an excellent replacement motor on eBay. I rotisserie a stuffed 18 ~ 20lb. turkey on Thanksgiving every year...a 5 or 6 hour cook...the tenderness and flavor is simply incomparable. The leftovers don't last very long, less than a week. A spiral sliced ham on the rotisserie...a whole chicken like we had last night...the juices are distributed throughout, instead of settling to the bottom and getting soggy.
If you are new to BBQ'ing, or otherwise hesitant to take the plunge, either buy an used kettle, or if you are lucky like I was, one of your neighbor's will put one out at the curb. Once you get the feel for the way it works, you won't be without one.