Haven't used a Boreas in awhile, though I still have three of them - mainly because I still use the Merlin daily, lol
Same here, only it would be plural "Merlins".
I have five of them sitting right in front of me, all with a different flavor. I just switch 'em around. Mostly at random. I have a spare or two in reserve. Lots of extra glass.
When I first started using RDAs I went through about half a dozen different designs, all well recommended by various sources, both before and after my first Merlin. They all had some flaw, occasionally serious, often just irritating.
I decided that the Merlin had the right combination of well thought out design, quality construction, build deck simplicity and elbow room, and performance. None of the others I tried did, and I've been un-inclined to invest more money on such a high disappointment rate. (I'm on a fixed income, and $30 to $50 experiments aren't something I can do often.) Also, thanks mostly to the Merlin (Blame it on the Merlin.) I came to the realization that I prefer single coil builds, and that reduces the choices dramatically.
Why mess with success?
Maybe if Roxy came out with something new.