Which to Upgrade first? My Amplifier or Speakers


I have owned a nice system for years, but I am hardly an audiophile.  You people impress me with your depth of knowledge of audio.  I've been following this site for some time.  This is my first post. 
From time to time I replace or upgrade components.  I've got a tricked out Linn Sondek LP 12 turntable.  I recently acquired a McIntosh MP 100 phono amp and am hearing LP's now that exceed anything I've heard on CD's and equal if not exceed the output of my SACD's.  I bring this up only to give a flavor of what I listen to.
The issue is as follows:  I have a McIntosh MC 206 Amp that I bought in 2003 that puts out 200 watts per channel.  I have no issues with it, although I've never had anything to compare it with.  I've read some impressive reviews of how much of a difference an amplifier can make to the quality of sound output.  For speakers I have Magnepan 3.6R's that I also bought in 2003.  I love them.  I can only afford to upgrade one at a time - let's say in the neighborhood of 10 - 12K.  So,  I'd like to hear what this august body has to say about which I should upgrade first and why?  The amp or the speakers?  Thank you. 
normantaylor
Dear @normantaylor : Do you bougth the Magnepan 20.7 that I linked to you? because I go to that site and the speakers already sold. Great speakers at truly low price second hand.

and what about those Parasound JC-1 monobloks that I linked to paired those 20.7s?  

Speakers/amps at an almost inside your budget range ! ! ! 

If you losted both then .....? ? ! !

R.
Better Magnepans seem to be the only worthwhile answer as you love your 3.6R's so much.

Amp upgrade is is an irelevant hopeless money pit when you have 200wpc already, I'm afraid.

It's your own fault for having such a decent system in the first place.




rauliegas
I'm embarrassed to say they slipped through my fingers.  I ran into the wife issue in pulling the trigger.  And, I was very excited about both - seriously.  I'm keeping my eyes open and massaging the spouse line in the meantime.  
cd318
Thanks.  You are kind.  I do love Maggies.  I think I'll go to shows and see what else brings me closer to the music without totally busting the bank.
Dear Schroeder and Tweak
Both of you are behemoths in audio, and I value what you both have to say.  The combination of science with art and the senses produces so many variables in audio that it truly makes for a remarkable playground.  I thank you both.