YUP!
WB's are probably the most application-specific machine in our industry. On the surface, they are pretty basic machine in terms of what they do. In fact, you don't really even need a technician to set one up correctly. However, there is a whole range of potential applications that will dictate how the machine is configured. Believe this or not, I actually had to complete both an in-person and advanced online training program in order to be able to sell them. There are literally dozens of possible configuration within the same frame, depending on what the customer is wanting to accomplish. That's why it's a bit of a minefield to shop for one. That being said, a "basic" 37-inch single-head unit with some type of pneumatic pressure control on the platen is really enough for most shop needs. Most every shop I visit just uses theirs for calibration sanding finished faceframes and that sort of thing. Unless someone is planning to do lacquer sanding, MDF, or aggressive stock removal, simpler is better.
Erik