I got a nice big fully motorized sit/stand desk for about $550 last year. (Also available with a hand-crank.)
https://www.tvilum-scanbirk.com/default.aspx?ID=1793&ProductID=80400/760803&GroupID=Working
Here are some others:
https://www.tvilum-scanbirk.com/default.aspx?ID=1793&GroupID=Working
The more (much more) expensive and better known Scandinavian Sit/Stand is Jesper.
https://www.jesperoffice.com/Sit_Stand_.php?cid=240
If you do a search for “Danish Sit/Stand desks” you’ll find more info. I was told that it is mandatory in some countries for employers to provide sit/stand desks for all office workers. I got mine from a Scandinavian furniture store in Columbia, MD. (between DC and Baltimore) https://www.indoorfurnitureusa.com/, however I don’t know if they still carry them. But they might be able to order or point you in the right direction.
It’s pretty cool and also makes a nice cat elevator to raise lower cats to/from the window sill. It is really refreshing to stand, especially for those of us that get restless easily. The other bonus is that it is easy to slightly raise or lower the desk so you can position your chair totally under the desk, like Grin likes, or more at waist level if you want to sit back.
Get one!
Jeff