Are cables really worth their high price because of their geometry?

ALL cables have a "geometry" - it refers the manner in which the wires in a cable are situated with respect to each other inside the cable sleeve (if it has one). Some examples of geometry are...

Teo audio's audio cables don't have a geometry, per se.

They don't mechanistically and/or quantumly or atomically possess the ability to respond or integrate with signal -like wire does.

Everything involving a liquid metal and signal, as a living breathing pair, is different than that of wire and integration with signal.

That is why it (liquid metal) has it's own wholly different areas in fundamental physics, as compared to 'wire'. Areas in fundamental physics which are, at this point viewed as almost infinitely more complex than that of wire.

Areas that remain mathematically and theoretically unsolved. Proposed and tested and math developed for some of it, but not verified by experiment. Ie, still unbounded.

Are cables really worth their high price because of their geometry?

For me, cables really worth their high price because of their sound in my system.  IMO, one's paying for someone's SKILL and KNOWLEDGE in building cables that fit's your taste and NOT from raw materials.  

I made some DIY cables that sound very very good and bested many expensive ones.   Ultimately my recipe was no match and had to open my wallet for some expensive ones.

Try tiriod wire

The lower the signal a cable carries, the more important its SHIELDING becomes. If the geometry helps to achieve that and/or reduce stray capacitance and/or inductance, then maybe it is worth the extra cost, but NOT by much. I bought a $10 phono shielded cable from Amazon ( https://www.amazon.com/gp/product/B016QVZF06/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 ) and compared it to another shielded phono cable costing in excess of $400 and there was absolutely NO difference in the sound except the $390.

As the amount of current the cables carry increase, the geometry matters less and less. In that situation about the only criteria that matters is to reduce the resistance of the wire by choosing it to be thicker.

Other than that, the rest is snake oil.

As the amount of current the cables carry increase, the geometry matters less and less.

I think it's the opposite.  That is the higher the current, the more geometry matters.