or you could do what i do, buy first (double the position) and then sell off the shares that are at a loss. back to where you started and have tax losses :-)
Tax loss selling pressure completely abates on January 1, so even though the sellers won't be buying back shares immediately, there are plenty of other bargain hunters who can push prices higher .... furthermore, there are those who are unaware of the wash sale rules, or just ignore them since one can only get caught in an IRS audit.