You should be clear that- despite the name- “cheaper” screens aren’t direct copies of the Apple originals. Rather, they’re compatible replacements that have been designed from scratch and- as a result- vary in some respects that have an effect on usability and quality.
Originals are those screens containing LCDs that were manufactured for Apple. Cheaper or so-called “copy” screens are compatible replacements, but designed and manufactured entirely independently by third-party companies, typically in China.
One of the most important differences between an original and a “copy” screen is how the digitizer (touch sensor) is designed. Apple has it manufactured as part of the LCD itself, whereas the copies have it on the glass.
Other differences including but not limted to:
- The cheaper one has much lower brightness, contrast and vibrancy.
- The cheaper screen has much lower resolution. That means it appears far coarser in normal use.
- When you try removing it, the frame was already coming off the copy
I personally recommend originals because they’re far higher quality and the price difference is fairly small.
Buying screens is/has always been tricky. NO ONE sells OEM Apple screens, in fact there is really not such a thing as an OEM Apple screen - because Apple doesn't make screens. Best advice is to find a distributor that you can trust and will take returns if you have an issue. If you buy in bulk find a goof distributor like the ones mentioned. If you buying one-off eBay has a lot of reputable sellers that will take good care of you.
- de Rob Link