Yes if you have a use for it.
No if you don't.
IMHO - if you need to ask - you don't need it.
I have one with and 1 with out. I also will admit I rarely use it,BUT I do find some uses very valuable.
Some highlights - Using ArcPAtrol in Virtual mode to log.
Running Unitrunker - Ohio just did a major rebanding - ez to keep track of local sites.
Signal Strength - ez to adjust, cut, mount antennas with instant power graph.
It just depends on your expectations and skilss - for day to day scanning you don't need it.
HP-1 x2 , BC780, BCD996, Pro 2005, 2006, AT803,R5000
and other RF capture devices
-Remember Bill Cheek -