What's the going rate for Standards these days? Someone near me is offering a set of lemon stratas for $750, which seems high. They're in good, but not mint, condition, sizes 22/12/13/16.
That's probably not an outlandish price due to the wrap. Lemon Strata seems to be one of the more sought after of the Strata finishes which puts them at a premium over the more common ones like blue and ruby strata. It seems to be a fact of life that certain wraps will bring more money than others for various reasons (rarity, desirability, coolness, etc. ) even though the underlying drums and resulting sound are exactly the same. Lemon Strata is one of the neatest looking of the six strata wraps (IMO) and therefore might fall into that category for many.
$550 or $650 would be better of course. If the seller doesn't realize that wrap is somewhat sought after he might be willing to negotiate.