£320 on bass strings.
A full set of Cordes Lambert synthetic gut strings (three G strings: heavy, medium, light; plain D, bronze wound A and plain A, bronze wound E).
Gamut Pistoy organic gut G, Gamut Pistoy organic gut D, Velvet Garbo A, Velvet Garbo E.
I've had excellent bass guitars that cost less than a set of double bass strings.
I thought I was being smart having two basses but it's just twice as expensive to re-string...