How much is it worth?

I have a 04' Lexus LS 430 with 161k miles. Looking to sell it within the next few weeks here. Has clean title passed smog and it's in pretty mint condition inside and out. Drives like a beauty on streets and highway. Its a onyx blue pearl paint. Haven't really seen any on the market in my area that have this paint. How much can I get for this beauty?

Is it worth keeping or selling?