well check out the prusa mini - half the price and actually more advanced. Slightly smaller print volume.

As far as tough filaments goes - for most from nylon to polycarbonate, you need an enclosed heated print chamber and hi-temp hotends.

That said the toughest filament I use is flexible pla. Pretty much indestructible and so tough it won't sand with my usual sanding blocks. Just laughs at them and says: 'is that all you got ? '

Pet-g will print without an enclosure. But for the hi-temp extra strong materials a heated enclosure is fairly essential.
have a look at the qidi printers on amazon