That's a good price, I've been trying to sell an E55 for 6 months..People don't seem to be buying big engined cars unless you virtually give them away.
As for ebay, well you'll find people offering insulting money...They expect a mint car for next to nothing.
May try E-Bay around April next year when the weather should be a tad better. Thing is I still use, and really enjoy doing so, the car so the fact it doesnt seem to sell has little effect on me. Good luck with your sale.
Nice avatar by the way