If, the $8,000 credit has nothing to do with your house sale, the $8,000 credit might produce a buyer who has sold his home because of it and is now a buyer looking to move into a home like yours.
More important than rushing your house onto the market, is to make sure your house is ready for the market.
Make sure if it needs paint and it needs repair to do the work before you list your home. Do everything you can to make sure that people are viewing your home at it's very best. Stage your home,if necessary, your Advisor will help you with this or refer you to someone who can.
Next, work with your Real Estate Advisor to make sure you house is priced correctly. That it is competitive in this buyers market. Price it slightly below market value. As your house is being shown make sure it always looks it's best. Let your chosen Real Estate Advisor market your property. Both of you working together should get you maximum dollar in any season.
Homes that do not look there best and are priced to high will never get maximum dollar no matter when you market them. These homes stay on the market, get stale and always sell for much less than they are worth.