It depends...
On how much accuracy you want to build into yr ammo. Starline is as good as it gets in pistol brass; very uniform in case weight, dimensions, and wall thickness. It reloads beautifully, I don't know how many times in .357 because I haven't had any Starline case failures yet.
You get what you pay for. With the "lesser" brands, buying new, you'll get all-same cases, cheaper, but the case-to-case variablilty will be greater.
With buying fired cases, you get mixed manufacturers and you don't know HOW many times that case was fired before it was tossed. Some will be once-fired, some will be many-times-fired; you just don't know. Lots of case-to-case variability. .357's are mostly revolvers; it's easy to recover the cases and thus to re-use them. So in that cartridge, I'd say the liklihood of getting multiply-used cases is greater than, say, .45ACP, where the majority of the guns are autoloaders which throw their brass all over the range.
Now, if you just want blasting ammo, you need one level of case quality. If you're praciticing seriously, you need another level of case quality. For competition, you need the cases as uniform as you can get them. For personal defense, you need cases that WILL NOT fail.
Buy the level of quality you will be needing.