Value of this instrument or maker
Instruments- discuss specific features, luthiers, instrument problems & questions
Wayne, a 28" or 28.5" nut-to-bridge scale length is about as long as it gets and still be considered 'standard scale length' range. So it seems to me this instrument was designed with a scale length in mind that is several inches longer than that. Whoever laid out this fret board with the nut positioned where it is now had the goal of making this longer dulcimer have a 'standard' length scale.
If you replaced the current fret board and put the nut where it would 'normally' be expected, this dulcimer would likely have a scale of 31" or so-- really a bit too long to comfortably tune up to the usual dulcimer key of D, and such a long scale would also make for difficult-to-reach finger stretches while making chords. So, somebody made this dulcimer have a 'normal' scale by the easiest way possible- by having the nut moved up by several inches.
How long is the overall length of this dulcimer? I assume it did not come with a case? Might be a little fragile and expensive to ship because of its added length.
About the Merlin, I can't say much because I feel like it's comparing apples to oranges. Instruments are tools, and much depends on what your own personal goals are for your playing. Choose a tool that will help you get where you want to go. :)