So I was doing a search on Adjust-A-Bench trying to find some info I was curious about in regard to bench builds using an AAB as the base and found this thread, again. I thought I would toss in another possible compromise for those who want a bench in a hurry or want features that may not be available on commercially made benches. I am not taking the position that people should buy instead of build their bench. It just occurred to me that the following option might provide some of the benefits of both the build your own and buy something you can get to the "real" work on sooner philosophies.
Two items, both available through Highland Woodworking, provide a solution with a great many of the currently popular features in bench design without eliminating too many other features. I will leave it to each individual to decide what features may actually benefit them in the work they have planed.
The two items are the Adjust-A-Bench bench base and the Roubo Workbench Top. Certainly buying these two items is a significant investment but also certainly within the financial reach of anyone considering buying and paying the shipping for a "full size" commercial workbench. These two items provide a reasonably sturdy adjustable height base and a 24" wide 4" thick, either 6 or 8' long hard maple bench top. The bench top comes in two 12" wide pieces that can either be joined as a split top or glued together to make a classic 24" wide top. The two halves "come pre-bored for the included Domino tenons to ensure perfect alignment". Simply mounting the top on the base provides a basic bench that the individual can then mount whatever vises... they desire on. There is also a locking caster system available from Noden that can make the bench mobile as well as adjustable in height.
I don't have a dog in the which is the proper way to obtain a bench fight. I built my first bench out of 2x4's, plywood and an old Record QR vise. I am now putting together an Adjust-A-Bench work surface that I will use as work support and a place to build a heavy duty planing bench. Clearly I am firmly entrenched in both camps.