Urgench is quite a drab town. It is an important agricultural center and when you drive around you see big canals full of muddy water, used to irrigate the cotton fields all around.
There is no reason to go to Urgench except onward travel to Khiva and the Aral Sea. For these purposes it is a stop you can hardly do without. You change buses here, or take a taxi and then you just get on. Why linger