Is there a point (for a SMB) to use eBGP when you don't require a block of public IP space?

Just some background, my company was a startup with out of control spending who had purchased an ASN, block of IPs and had an AWS direct connect VPC. This was all done through BGP.

Wjile we still need 2 ISPs, one is much slower for redundancy so they don't need to be load balanced, and we don't need to pay for a lot of this stuff.

I might be not fully getting eBGP, but is there even a point to it when you don't have public IPs to advertise other than the ISPs gateway? I know you can influence the path with local-preference and path prepend or weight, but is there any benefit to using it if it's purely as a failover rather than being load balanced?