I want to buy my first 3D printer.

I was thinking of buying a self assembly kit on ebay - less than ?90!
(I can't give a link as I am a new user on the forum)
There are many Chinese sellers selling.
The title is something like this: 'A8 Desktop 3D Printer LCD Unassembled DIY Kit High Accuracy 220*220*240mm'

Or should I invest buying something that costs a little more?

The thing is, I can't find the above 3D printers on Amazon anywhere - assuming they were once sold but got many bad reviews?

Thanks.