Jimmy - I don't think this is a combo machine. It's just a jointer (jointer planer, as opposed to a thickness planer). The JET combo units you refer to only come in 8", 10" and 12". But you're absolutely right it doesn't make any sense to get a combo unit when you already have a planer.Michael,
Since you already own the DW735 I would advise you to pass on the combo model and go for a dedicated jointer if you have the room. A used 6" jointer can almost always be found for around $300 or less and gives you a much longer surface which is needed for dressing longer boards. The 6' combo wouldn't do a good jod on anything longer than 4'. If you have the time and patience, I would wait for an 8" jointer if possible.
Good luck with any decision that you make !
Jimmy - I don't think this is a combo machine. It's just a jointer (jointer planer, as opposed to a thickness planer). The JET combo units you refer to only come in 8", 10" and 12". But you're absolutely right it doesn't make any sense to get a combo unit when you already have a planer.