The other thing to consider is how Honda does the options. If you want ABS you will need to get one with NAV. With that said I wanted ABS . Purchased a nice 06 with comfort,NAV and ABS and love all 3 .
Having the NAV intergrated into the system is nice. When a turn is coming up it mutes the radio so you can hear the direction clearly. You won't find that on a add on system.
Garmen has a 2013 map coming out and 2011 is out now so for less that a $100. You can update and it fairly simple .
Behind"Goldwing " Bars