Well, you get what you pay for with these....
They are worth the price. You can find deals if you look hard enough. If you can afford Maya then these are a drop in the bucket.
I have the Graphire 2 and I think I paid about $80 for it about 10 months ago or so....
I can't remember...
Maya has a feature that will utilize the pressure sensitivity of the graphics tablet in order for you to have more control when modeling or using paint effects.
https://www.darrylworley.com/
https://www.defendamerica.mil/nmam.html