New screens for laptops do cost a lot but no where near €900.
I'd agree with Clubman on this one, if its an old laptop you dont use that much, have a browse on ebay and you might pick up one for spares and salvage a screen from that.. its not that hard to replace a screen if its broken. Probably take 20 mins if you have the instructions to hand and are anyway confident with computer hardware. I spent the best part of a year replacing 5-6 a week in a place I used to work in so if you have any problems, drop me a pm.
I.C