Meadowlark Ospreys.. fighting under their weight class?

Budget of $15-20K? You should not even be thinking twice about this! With a budget like that you will be able to procure a transducer which would walk all over the Osprey's performance. It's a simple matter of what you get for the money. The osprey may be very nice, but it's obviously limited much more so than a great number of $15-20K speakers. You can get into an entirely different class of performance. This is one of the questions that the obvious answer is yes, make the move. 

With a budget like that you also should consider whether you want a panel speaker. Completely different world with a big panel as opposed to a smaller tower like the Osprey. You have a LOT of room to move upward in performance no matter which direction you go, and it seems you have the motivation and means. It would be a shame for you to get stuck with a smallish tower and never get a slice of the experience of a larger, more capable tower. 

Thank for all the great input. The suggestions on the Tannoy is interesting as I've always seen great reviews but never have heard them. I want to move up the ranks in speakers to meet there grade of the electronics but don't want to be underwhelmed after spending a lot of money.

Went to Audio Visual in San Francisco yesterday and left with an upgrade to MC with the Lyra Delos. Chris there said it would give me much more detail and expand the soundstage, much of what I loved so much at the CES demo's. I'm installing it now and will check back with you great people.

Maybe this will scratch the itch for a while. 

The panel speakers for a larger sound have become a priority for a listen, and of course the Tannoy range.

Big thanks.

Late to the party, but just happened upon your post here.  I enjoyed a pr. of Pat's Osprey's for 8+ yrs, all the while bringing in occasional contenders just for comparison.  Could never find a design that matched the quality of build and sound that the Ospreys were, until....Daedalus audio.  Different concept in a tower, but beautiful, organic sound and solid wood design, sim. to Meadowlark (fyi, I note a pr. of Blue Heron II's just came up on the 'gon).  If you have not otherwise moved on from the Ospreys, I might suggest connecting with Lou at Daedalus Audio.  Certainly within your stated budget.   
  

There are two classes of loudspeakers, i.e., Tannoy and everything else. 

But only the Tannoy Prestige line are worth owning, unless you can find a used pair of 215 DMT II studio monitors -- which are no longer in production.