need quick opinion on price

[kriss]

local porsche dealer has a 03 boxster s,grey,25kmiles,heated seats,cruise,18"wheels,surround sound,onboardcomputer(no nav),4 michelin at 17,000mi.with alignment,battery 1 yr old,15k service,oil changes,one trouble spot that I could see was in 08 and 09 airbag light went on without an indication of what was replaced if anything.top looks good. dealer was asking $26,995!!...I offerred him $23,000.if he accepts that is that a fair price? thanks. ps-it also has the bixenon lights,wheel caps,mats...