Celestron is pretty good for your intent of use. The TrailSeeker 80 used to cost ~$300, and Ultima 80 used to cost ~$200. I'm using the Ultima 80, it is adequate for 200 yard paper target. It's heavy and bulky.
High end scope use ED glass which can minimize chromatic aberration. But my friend's $2000+ Kowa 553 still shows chromatic aberration at 800 yards. Chromatic aberration basically means different color (wavelength) will have different focus point, (far end of spectrum) you will see blue or black outlines around an object, ED glass have better focus across all colors, hence sharper image.
High end scope might have better glass coating, which provide higher light transmission, hence brighter image.
But for spotting paper at 200, and animal at 400 yards, a cheap spotting scope is adequate. Celestron's price increased by ~$200 on Amazon. So other brands might be more cost effective.
A spotting scope is useless without a solid tripod. A decent tripod can cost $1000+(RRS). Save some money for tripod.
My $200 spotting scope sits on top of a $500 carbon fiber tripod (Leofoto 324, shameless high quality Chinese copy of RRS). I spent more on the tripod b/c I also use my tripod as shooting rest (prone, sitting or standing).