The 3" 65s are desired by many as a choice shooter's piece: barrel long enough to get a decent sight radius on, but short enough to conceal relatively comfortably; fixed combat sights are good for holstering, low profile, reliable for defensive work and don't get in the way like some people feel adjustable target sights can; stainless steel carries better than blued carbon against sweat and the elements; will handle .357 Magnum and .38 Special; round butt conceals well with the right grips; and so on...
A cliche, but, for a defensive home or carry revolver, everything you need and nothing you don't.
However, more information is needed about the specific one you're looking at...
What is its condition by NRA modern handgun standards? Does it spec properly vis-a-vis forcing cone gap, headspace, firing pin protrusion, alignment, timing? What is the condition of the bore, the chambers, the finish? Are the grips original to the gun? Does it come with the original numbered box, with paperwork and tools?
In short, is it a beater, a shooter or a collector?
Suggest you run a search here for the pre-purchase revolver checklist to have a good sense of what to look for when you can handle the piece.
I tend to avoid beaters, but if interested they list around $350; a used but solid shooter can run you between $400 and $500 depending on the weather. Once you get into collector condition, box, paperwork and such, you're usually looking in the mid-$500s and up.
