A Yamaha 610-II for $320?!

[westend]

The sparkplug analogy is not quite analogous to electronic component replacement. A better automotive analogy would be igniton systems or fuel systems or even batteries.
What I see is that the OP was taken aback due to the seller's reference to multiple "upgrades". The seller, in his defense, is stating that each component change is an "upgrade". It would probably be more to the point if the seller listed the replacement of the caps as an "upgrade to the audio path", an "upgrade to the power supply", etc.. The price in this is mute, IMO, because the seller can market his costs, including labor and materials as he sees fit. The seller can buy his wares according to his own scale of economics.
There is little argument whether the replacement with newer components is an improvement over the older ones.

 

[CUlater]

Hmmm. Seems pretty simple to me, and I'd define it thusly:

When all the replacements work together towards one goal, then I'd lump it into 'an' (one) upgrade - I don't 'upgrade' four times when I get better tires, I upgraded my tires once. Likewise, with the Splitfires, I upgraded my spark plugs, not performed 8 upgrades to my spark plugs. If I replaced my tires and spark plugs with the above, then I upgraded my tires and spark plugs - two upgrades to my car.

So, to my thinking, if I'm replacing all the caps in some piece of gear, then I've upgraded the caps - not performed 58 upgrades. I might choose to note that upgrading the caps involved 58 caps total to indicate the degree of work involved, but IMHO I would consider it being slightly deceitful to claim I've performed 58 upgrades.

Anyhow, its 'caveat emptor' anyway, so to each his own. If the buyers are happy, that's the main point in business. And, I'm glad that there are folks out there who love this gear enough to take the time and effort to do such work.

 

[bordeno]

I think this puppy has been pile-driven into the ground. Everyone chill or someone close the thread, it ain't goin' nowhere.