I agree...I only own one together with its even harder to find 5" presentation case...It resides comfortably in the safe with my three 3 1/2" 27-2's and their older 3 1/2" .357 Magnum cousins (nickeled and blued)...Can't speak to value, but the 5" is the least common barrel length and quite popular.
Seems like there are a lot of -3's with 5" barrels.
I noticed in the Blue Book that they claim one should attach a 50% markup on the 3 1/2 and the 5" versions of the Model 27 even in -2s. Do you guys think that still holds true? I know that tastes change and "trends" come and go.
Obviously, I couldn't decide since I have 3 1/2, 4, 5, 6, 6 1/2 . Never ran across an 8 3/8 or I would have it. Like those M27's.
-don