I have a few blue PRSi, with only one with a top/finish that comes the slightest bit close to the awesome specimens already posted - and it isn't full blue, it is purple blue burst.
(Photo care of Brian's Guitars - I never did my own photo shoot in the yard like I usually do.)
And then this 594SH - a 10 top, but not nearly as perfect as most.
This SE SVN has an interesting blue burl top:
There's this SAS in Blue Matteo:
And lastly this Brazzy McKorina Soapie (which can look a touch greener in certain lighting):
My DiMeola has blue in it, I guess.
Ya know, looking at the above set of just my blue PRSi, I really have no excuse for wanting another PRSi. And I have a nice collection beyond just these blue ones.
Yet there are so many more "regular core" models to acquire! Paul's, SC-J, maybe a ME, 513 (just to compare to the 509), that SC594SH that haunts me...