20 gauges and smaller are the darlings of gun shops and dealers who can sell them at a premium compared with 12's and 16's. 16's are considered the red-headed stepchildren of shotguns by many, but have moved up in pricing over the years, but are usually costlier than 12's, but less than 20's. Continental and British 16 gauge doubles, pre-war, are usually lighter than currently made 20 gauge doubles or O/U's, and many classic American doubles in 16 and 20. I have more 16's than I need, but not more than I want.