I purchased mine from Uplift but it was about $650, including the add-on for height presets (I believe that also included tax).
I bought it using PayPal’s credit system, which let me pay it off over ¿6 months? (I think) with no interest.
Mine is somewhat wider that what you are looking for, so it might be possible to configure something less expensive from them.
The reason that I mention them is that I did quite a bit of looking around, and discovered that most of the people who I had heard who had invested in a “sit/stand” desk had bought from Uplift. In fact, when I asked Jason Snell about his on Twitter, I heard from 3-4 more people who chimed in that they had an Uplift desk and loved theirs as well.
That is, of course, not to say that there aren’t other good models out there, just one data point. I will say, however, that I absolutely love mine. My only regret is not getting one that was even wider.
I ended up moving my new desk to another spot in the room from where I originally had my old desk, and there’s more space here, and I, for one, can never have enough desk space.
The presets for height are fantastic, and I would definitely recommend that option. I have 1 for standing & typing, 1 for standing and recording, and 1 for sitting.
One thing that I learned which I had never thought about previously was that even in a sitting position, being able to adjust the height would make things so much more comfortable. I believe it is common for many desks in the US to be 30-inches high. I found out that 29.4-inches is the perfect height for me based on my height, how I sit, and with the chair at the height that I prefer.
Oh, and the biggest question is always, of course, “Will you actually use the sit/stand feature?” For me, the answer is yes! With so much of life taking place on Zoom, I find it especially nice to be able to stand for calls/meetings/etc and still work comfortably. I suspect no one on the other end even knows that I’m not seated, except that I have a bit more freedom of movement.