What should I price my X at?
 

05 4.4i with 81k miles. Sport package, black leather, sterling grey, pano roof, headrest monitors...pretty well loaded out minus heated seats.

Interior is 10/10, exterior is 9/10. Runs and drives like new.

Florida car... never seen snow.

What say ye?

My area on autorader they're holding around $18,900... but on ebay across the country they're closer to $16k.

It depends on how motivated you are as a seller. Price at market value if you have no rush. Price lower if you want to move it quick.
Looks like you did your homework, so I'd say around $19.5K in the condition you described. GL