I would wait until the boat is delivered until you put in Radar. There are rapid changes in electronics--especially Radar. Broad band has some real advantages, as Dave Deem noted. So Far Navico is the only one with it on the market. From what I have seen it is very impressive at short ranges (up to 3 miles) where you run radar 90% of the time.
Where you boat and how you boat will determine if you use Radar. I have used Radar for over 30 years, and perfer a separate display. I have the Furuno 1715, with a 7" monochrome dispay. Yes, all eggs in one basket is not a good idea. I have two chart plotters, two separate Depth finders (one a fish finder) and one radar. (I also have paper charts and a hand held GPS).
Read Panbo.com--this is Bell Ellison's (was electronic's editor for Motor Boating). Also read the electronics section of "the Hull Truth"--it can get a bit confusing, but there are some very good people there.
I suspect that other manufactuers will have broad band radar by next spring, and that AIS will be much more "Plug and Play"--and perhaps a little cheaper. AIS is another tool, if you are running in fog or at night.