If ever the statement "what goes around" applies it would certainly fit double barrel shotguns. When I first started 12 gauge, single triggers and 26" barrels were all the rage but this has changed.
Now the preference is for smaller gauges like the 20 ,double triggers and 30" barrels.
I personally think if you're only going to own 1 shotgun you're better off with a 12 gauge as it will do anything the smaller gauges will do and probably better. This observation is based upon 40 years of shotgunning experience with any and all gauges and types of shotguns made.
Just a note on single triggers and also ejectors while I'm at it. If either of these features goes out of whack they are very expensive to get repaired.
Jim