Is it worth blocking individual IPs ( 3 mill hits in past 24 hours)

I have been subject to intense DoS attacks (relative to my business size) for months now.

In the past 24 hours I got 3 million hits) from over 8000K users above my normal 800-900.

I have been going through and blocking the highest hitting IPs but I am curious, if this is someone who is obviously part of a network that does this professionally, should I waste my blocking individual IP addresses?

A post was merged into an existing topic: Any advice for an ecommerce site that is repeatedly getting hit with DoS attack?