We were quoted low 6 figures per year for our existing infrastructure which is actually more then we pay for AWS for our usage of API Gateway / Lambda. We also were told there is no way to automatically opt out of features such as traces/metrics, it must be done through their UI, which is extremely frustrating because it is a massive price hike and is worse then what AWS offers overall from what i saw.
I highly recommend you discuss this with us/me. We're small, approachable, flexible, and you've been with us so long we're more motivated than ever to make this work.
You can opt out of the observability features in the Dashboard.
Caveat: I don't know all of Serverless's features. Our last company used them as a legacy service but new stuff was just written in JS and put on Vercel alongside the frontend. For simple edge functions, it was a lot easier to manage (or really not manage, just write it and git push and you're done)
SST has a good guide for migration: https://docs.sst.dev/migrating/serverless-framework
Otherwise you might consider doing the same with CDK. As a last resort you can use CloudFormation's new import/export tools and manage the stacks with SAM.
It's really too bad, I'm sure a more reasonable pricing scheme (framework only?) would lead to more adoption, but I'm sure that revenue had been a huge challenge lately and it seems like that means it's the end of the road for the Serverless Framework until v3 is forked.
(disclosure: I worked there for a while)