Sellers: When do you drop your price?

Selling my first piece of gear.  I've had a lot of views but no offers. It's been about 5 days. Great condition, 2 years old, offering about about 1/3rd off. No original box.

Perhaps all gear is particular, so if that's so, we can end this thread right here. But in case there's a general bit of advice, How long do you let an ad marinate before adjusting the price?