Best speaker for under 2gs

In the market for new speakers. Full range, planar/ monitors, makes no difference, just want some opinions. Running tubes at the moment, that too can change.
In the brand new segment, perhaps SF, Quad, PMC. Personally, i like the second hand market a lot for speakers as, providing they are well cared for, there are relatively fewer moving parts to worry about (compared with digital, tube pres, etc)

In which case, there is a lot for $2K one can buy that is sensational. If interested, happy to post, otherwise, good luck with the new stuff!!
There is no definitive "best" of anything. There are way too many variables involved. The "best" you can hope for is to find something that works well in your system. You can then say it's the "best" for you until you find something you think is better !!!!
Zu Audio speakers looks interesting to me.
Maggie 1.7's
To feel comfortable giving a recommendation I'd need to know a bit more about your space and musical preferences, as well as what aspects of musical reproduction are most important to you.
Gerry, as noted above there is no "best" as there are too many unknowns. I would recommend 1.7 Maggies for under $2K but it wouldn't be worth squat if you didn't have the juice to run them nor the space to let them breathe.

Provide some more details as your current system, room and desired listening levels and maybe the type of music you like to listen to and I trust you'll get some relevant recommendations...
here's a wildcard: TANNOYs with dual concentric drivers (pick your model) them used

A below the radar kit that will stun you as much as it stunned me enough to buy them for my B system
The Gallo 3.1s on Agon right now are a great deal at $1400, grab 'em while you can...

Look into the Fritz Carbon 7.
Good call on the Maggie 1.7s.
Reference 3A
If you are looking for outstanding monitors I would strongly recommend purchasing the Vapor Audio Breeze speakers. An awesome Raal tweeter offers stunning highs, and the Wavcor woofers offer Great bass that is lightning fast. I own this speaker, and my quest for speakers is over.
Mine have curved sides and are done on redwood burl with matching stands.
Aerial 8b and 7b both currently available. Great speakers.
Maggies, obviously.
I concur with some of the respondents here, there is NO absolute best when it comes to what are the best Speakers for $2K. There are too many factors and variables to consider.

But if it were up to me, I will opt for Vandersteen 2C's, 2Ce's or 2Ce Signatures (anything made in 1993 or later).

Addend to my last post:

Afterwards, I would start shopping for a used Bryston BP-20/BR-25 Preamplifier along with a matching Bryston 3B Power Amplifier to drive my Vandies afterwards.

Paradigm and KEF
To echo - you can't go wrong with either 1.7's or the de Capo's.
Best speaker under $2K?..Thats easy. The remarkable Polk LSIM 703. $1500.00 a pair. Powerful bass. Go down to 36Hz.
State of the art drivers and excellent crossover. Very rich, very smooth. Outstanding detail and transparency. A bookshelf speaker that will put many floor tower's to shame. Have a full relaxed organic character that is very engaging. Can handle a 500 watt amp without breaking a sweat. One of the most musical speakers on the planet regardless of your choice of music.