I have a similar query... I need to replace some SAS 10k and 15k 2.5" drives.
SSD (even SATA) would offer substantial performance increase, responsiveness and temperature reductions. There are also SATA based SSDs for enterprise environments.
Unsure about longevity though and if there are any other concerns. There are some articles on StorageReview that have some similar test results to compare to SAS HDDs - https://www.storagereview.com/samsung_850_pro_ssd_2tb_review
I guess it would also depend on your use case though. What's your server doing? How many users? What's your drive configuration? How much storage do you need?
I was looking at:
4* disk (250GB) RAID 10 for VMS (low requirement) and exchange logs
4* disk (500GB) RAID 10 for exchange (50 users)
6* disk (500GB) RAID 6 for user data, sharepoint and WSUS
Am also considering SAS SSD or NVMe addin card.