Iris and Wally Schmidt have driven about 164,000 miles in their RV since becoming fulltimers. Their mailing address is Cincinnati, Ohio and when asked where they are from, that is the answer. However, they quickly add that they are never there -- home is their well maintained RV. The Schmidts and thousands of other members of the Family Motor Coach Association are in central Oregon this week for the annual FMCA Convention. Most, approximately 3,000 RVers are at the Deschutes County Fairgrounds while another hundred will be filling the lawn area of the Crook County Fairgrounds.