can some one tell me....

why the FUCK weather stripping and rubber seals are all like 30 to 60 bucks for these cars, I took mine off thinking they would be like 15 to 20 bucks at most but fuck man.....and I need them before I can order new carpet and put my shit back together...if anyone has a trunk, door seals, and window seals(for the doors) that are decent enough and don't leak hit me up, I need dem bad boys lol....no but seriously im about to make my own lol