Mitch . . . as I have already said and I repeat myself for emphasis sake, as a previous owner of a Ref 3, the Ref 3 will go down as a clssic line stage, it's just that good. I wouldn't stress myself about it.
I figure the cost to upgrade to a new Ref 5 SE will be about $7+ thousand (i.e., about $12K [assuming discount], less $5K to sell used Ref 3). It's one thing to go from a Ref 5 to the SE for about $2500. IMO, it's a whole 'nuther ball game to jump from a Ref 3 to the Ref 5 SE for $7+ thousand.
I figure the cost to upgrade to a new Ref 5 SE will be about $7+ thousand (i.e., about $12K [assuming discount], less $5K to sell used Ref 3). It's one thing to go from a Ref 5 to the SE for about $2500. IMO, it's a whole 'nuther ball game to jump from a Ref 3 to the Ref 5 SE for $7+ thousand.