If you're shooting your 280 pretty well and are satisfied with it, then I'd say you have a decent 20ga for about half the money you'd be likely to put into a nice used Merkel 47E. If you're a fan of double triggers and a splinter forend, that's what most Merkels have. You're stuck with a single trigger (but it's a pretty good one) and a beavertail on an SKB. If you prefer the features you can get on a Merkel in a double for bird hunting, that might be reason enough to consider one.
And you'd likely do OK selling your SKB (or both of them) right here. I think they're pretty much at the top of the heap when it comes to well-made side by sides at a modest price.
