To me, Airstreams are cost-prohibitive (though well-built). They are also limited in terms of storage space and don't have slides. Lance is known for good products, but you might also want to check out Northwood Manufacturing (Nash, Arctic Fox). They build excellent units, too.
Rob
U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015