Here is some good news… you can get a nicely usable uke at any price point. I have ukes ranging from a cost less than my favorite set of bass strings to “nicer” ones and they are all equally usable (once setup correctly). Case in point: I did a blind sound test with a $40 pink uke made of unknown material (it’s painted) and a 1930’s or 40’s martin tenor. Musicians and others couldn’t identify them correctly with any regularity (myself included). Find one with good intonation and a good neck angle and you will be fine. Really cheap ones are not likely to be setup well, but if you address that, you should be good to go at any price point.
Edit: there are sound differences between ukes. However, IMHO, it is not like bigger instruments where you MUST pay a certain amount to get a decent sounding and playing instrument.