Moving storage to the cloud while keeping apps self-hosted

Self-hosting apps is great. Infrastructure...not so great. I'm considering reconfiguring my hobby to get away from infrastructure. Things are just too expensive. Have you see the price of RAM, HDDs, and NVMe? I've been in the self hosted/homelab hobby for a couple of years now and have been considering upgrading my systems. I just can't pull the trigger on spending $4K on used SFF PCs and Hard Drives to bring me up to where I want to be. Not to mention the risk of hardware failure (one backup is no backup).