I've gone from a Gixxer600k5 to a K7 SVthou. As Fatjim mentioned, the soft suspension and the knocking on low rev's, will eventually get the better of you with the Sv, and you'll be wishing you purchased a good example 04/05 Gixxer1000 or CBR1000 instead (as I am now).
However the reason I bought the SV was purely with commuting and 2up riding in mind (as I now have a 100Km round trip everyday). Its a piece of cake to muck with, and the engine will (hopefully) go forever. Plus the Paekakariki Hill is always begging for me to come over (oh wait - here go those voices again

). Which the bike does as well.
However going back to my old 600, the 600's are amazing sportsbikes, I really didn't want anymore in a toy. Execpt it really lacked in the 2 departments that I was going to be doing a majority of my riding (until wifey gets her full licence). The SV1000 has no issues whatsoever with the wife on the back, nor will the VTR.
I suppose what I'm trying to say here, is get your priorities in order and decide from there, you never know what you might end up with. You could end up on a Tuono, Monster, Superduke, Gixxer750, Z1000, MT01, blarblarblar...
Good luck.
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