Total guess, but having some experience with transactions like this: $5-10k.

Making a mental note to track the SEO impact of the redirect to a subdomain here.

For anyone who has to constantly (re)evalaute EC2 instances, this is a huge understatement. Now, I just looked at AWS EC2 pricing page and it looks way better than what I remember using in 2018.

Back then, for a given instance family, the specs and prices were on separate tables, making it maddening to compare. And forget comparing across instance families. instances.vantage.sh nee ec2instances.info made that so simple. Even the AWS ProServe employees that I worked with preferred it.

So AWS may have closed the gap but ec2instances.info is still superior since it offers advanced features such as "sorting" and "searching". The "Compare Selected" is super handy as well.

The biggest plus for Vantage is that ec2instances.info wired in to my fingers, I suspect that's true for a lot of AWS devs. By buying this site, they get a lot of eyeballs for their product. And frankly, it does make sense - Vantage is trying to selling you a better AWS console, this is a better pricing page, so it fits. The original dev gets some cash for a side project that was probably a huge headache to deal with. Win win for both parties.