Setup on a Les Paul, in my shop, runs about $80. That includes restring, clean electronics, clean and polish, tighten up hardware, and adjust (in order, truss rod, nut, bridge, intonation). It also includes any minor changes if something doesn't suit the player quite right, at least for the next few weeks.
Let me put it this way. We may be more expensive than most, but we NEVER have anyone go away disapointed.
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"Cowards can never be moral."
M.K. Gandhi