Those VHS prices are very high and the vinyl is absolutely outrageous. I know we’re in the midst of a ‘vinyl comeback’, but that means that collectors know to go to discogs.com and look and average/median going rates for every pressing of every album ever made.
Example: https://www.discogs.com/sell/item/310752496 (sealed RoTJ, not just ‘never played’).
I still think you can make great money off of them, but it wouldn’t hurt to be more realistic. Or, if there’s something incredible about the specific pressing, make that clear and don’t just hope that people will throw money at the word vinyl.