In September I'll be going to Glasgow, and while I'm there, I'll be visiting some thrift/vintage shops hoping to find a nice kilt jacket and possibly a nice dress sporran.
But how do I recognise a quality sporran?

When I see sporrans online, to me Ģ250 sporrans don't look different from Ģ25 sporrans… So if I can actually inspect a sporran, how can I tell it's a quality sporran or not?
The thickness of the leather parts?
The kind of stitching?
The absence or presence of makers' marks?
Any makers I should keep my eyes open for?
Does "Made in Scotland" have any value at all?