numbers show the sales of american rv s reaching new heights. 430,000 recreational vehicles sold in just the last year. hey, david. i m bob wheeler and i m proud to say that airstreams are made in america. reporter: just outside columbus, the american workers proud to play a role in your summer vacation. carrying the aluminum for every trailer. in 2008, the heart of the recession airstream had 156 employees. togh there at 830. and who s buying? hi david, joe and kim from dearborn, michigan reporter: and their kids. traveling all the way to anastasia state park, st. augustine, florida. and elna who wanted to give us a tour. we have a dinette and a lovely kitchen. hi. i m beth and i m bill. reporter: still getting their timing down. but they have traveling in their airstream perfected. four to five months a year. and these are all the states that we ve been to. reporter: and we could use their help.