Far be it from me to dispute numbers provided by a company's marketing department. :-)
(Calm down, RVers, it's a joke).
There are about 800 RVs in the Deregistered Aircraft List that would not be included my original tally. My list also doesn't include 293 RV-12s that are NOT registered as Experimental Amateur-Built (not all are LSAs). There are 160+ Harmon Rockets, and since they start out as Vans kit sales, does Van's count them?
Otherwise, the filters I use to detect the aircraft may not be catching all of the aircraft. My typical filters for RVs is:
Like "*RV-6*" Or Like "*RV 6*" Or Like "*RV6*" Or Like "*VANS 6*"
For the last one, see N65ED and N80972.
There are undoubtedly registrations I'm missing, but think these'll cover the most common variants. But if someone calls their RV-6 a "Jones Special" there's no way to tell what kind of plane it actually is.
Ron Wanttaja