Amazon offers its Amazon Prime members the Horror Classics 50-Movie Pack Collection on DVD for $8.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $2.98.) That's pennies more than our October mention and the lowest total price we could find by $3. This 12-disc set includes "Attack of the Giant Leeches", "White Zombie", "Nosferatu", "Night of the Living Dead", and more.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)