Most RV trailers have everything as an option on the order sheet.
I know when we ordered our PUMA, the stove, furnace, vent hood, AC, spare tire and spare tire carrier, microwave, and water heater were all "options", even though the brochure showed them as standard... Dealers are told what a "standard package" is, but they do not have to order them that way...
Current TV:'14 F350 Lariat CrewCab, 4x4 Short Bed SRW Diesel w/ Pullrite 2700 (16K)
Current Fiver: '15 Puma 295BHSS Anniversary Edition
Past TV: '13 F150 HD Payload SCrew EB, '08 Tundra CrewMax 5.7L, '02 'Burb 5.3L, '97 Dakota 3.9L
Past Trailers: '09 Wildwood LE 27RB, '02 Palomino Yearling RL, '87 Jayco 1006dlx