My .02,

1 SxS guns are a niche market. A market that is not normally rooted in practicality.

2 The RGL aside most of the newly made 12 Ga SxS guns are too heavy to meet the desires of most of the above niche market. The RBL 12 ga. for example. This criticism does not extend to the RBL 12 on the 16 Ga. frame.

3 There are a lot of good used 12's on the market for a lot less money than anyone could possibly build and sell one.

4 O/U's dominate the clays games. SA's have the waterfowl market. Fire power over style power.