The answer to your question really depends on the price, so we can see what the $10k would mean.
For those who are not familiar with it, and there are many who do not, there are certain lenders who allow a 1 time PMI payment so that monthly PMI does not get charged. This can mean a lot more to a buyer than reducing the price. The $10,000 lower price would amount to a monthly mortgage payment difference of $63 at current rates. On a $200,000 loan at 90% with top credit scores, the monthly PMI would be $82. You can use this to judge whether the price reduction is worthwhile.
Incentives, like the one you propose, are most effective when the buyer has acknowledged the home meets their criteria. Offering such incentives openly to all, is actually counter-productive.
Being at the showing can prove helpful. Otherwise you are entirely dependent on the buyer's agent. Now, don't forget the most important factor in any such incentive, include an expiry.
Best of Success to You,
Annette Lawrence, Broker/Associate
Remax Realtec Group, Palm Harbor, Fl
727.420.4041 - http://www.RealEstateMadeEZ.us
JUST PUBLISHED BUYER GUIDE: http://www.trulia.com/blog/AnnetteLawrence/