A few things from a many Maggies owner since 1977:
There is a conspiracy in White Bear Lake MN. Audio Research guys collaborate with Magnapan guys in the depths of winter when there's nothing left to do. therefore; one must drive a Maggie with a pair of ARC tube amps. It's the alchemists law. :)
Maggies will bend your perception of sound. Maybe literally- they are so very different that there aren't words. You will either love them or be selling them in a few months.
If you like acoustic music there is a transcendental event as you listen to it on a properly placed set of Maggies. If you like to rock out with your socks out buy something else. They don't have the capability to replicate the big speaker distortion gear Uncle Ted or Neil Young like to play through. If you want to use them for home theater you will be sorely disappointed.
A properly treated listening room, proper placement with TUBE amplification and lots of watts in reserve will change your HiFi arc. For the better. Every time.
One last thing: Try them at home before you buy them. A good retailer will allow a qualified buyer to do this, Also, treat your retailer right. He needs to make a fair profit on them so he can bring you the atelier services you are seeking. Don't be a dick and wring him out then shop for used ones. That's manifestly selfish and unfair. Moreover it will help eliminate retailers who in this hobby are essential. (no I'm not a dealer or broker. Just a realist) We are loosing the great enthusiast old school retailers. They are going broke while selling some of the best knowledge, experience and gear out there. Support them.