If you do a lot of printing on 11×17 size papers then having a machine with tabloid capabilities isn’t much of an option. Maybe you don’t though, you might be one of the many businesses in the middle. If you do some 11×17 but not high volumes then it can be a tough decision especially with a feature that cost so much.
In our experience there is a breaking point at ten percent or so. If ten percent of your volume or more is on 11×17 then it’s worth the investment in a tabloid copier. If you are below it then it probably doesn’t make financial sense to get the 11×17. There are some instances where it is still worth doing though so don’t go into this blindly. How else will you have them printed? What is the cost, and how much time will it take?