The place screamed opulence with its four flat-screen televisions, surround sound, tiled floors, supple white leather couches, air conditioning, king-size bed, two bathrooms, hand-crafted cabinets and large, stainless steel refrigerator. It was fit for a king. It wasn’t a castle, though. It wasn’t even a house. It was a 42-foot Allegro Bus from Tiffin Motorhomes, the star of the 23rd annual Inland Northwest RV Show and Sale. At $326,000 – twice the median home price in Spokane last year – it is the most expensive RV in the show at the Spokane County Fair and Expo Center through Sunday.