[Elecraft] Question about KBPF3

[Jeff Cathrow]

When I built my K3 I loaded it up fairly well with options but didn't include a KBPF3.  I did install a 13kHz filter for FM use on a few bands (2,6 &10) and AM receive.  Since I am able to receive the SW broadcast stations fine I wonder what the advantage is if  one installs the KBPF3?  Are the various SWBC bands automatically included along with the ham bands?  I've always been curious about this so if anyone could fill me in on whatever advantages there are to installing one that would be great.
 
73, Jeff, NH7RO