diff --git a/Cloud-Tier.md b/Cloud-Tier.md
index 8f33d14..0c5acde 100644
--- a/Cloud-Tier.md
+++ b/Cloud-Tier.md
@@ -16,6 +16,18 @@ If one volume is tiered to the cloud,
 * The `.dat` file is moved to the cloud. 
 * The same O(1) disk read is applied to the remote file. When requesting a file entry, a single range request retrieves the entry's content.
 
+## Benefits
+
+Compared to direct S3 storage, this is both faster and cheaper!
+
+* Cheaper!
+  * Avoid the API access cost, which will hit your wallet after you went all-in S3.
+  * Use lower cost storage tiers.
+  * Compression
+* Faster!
+  * Local access for recent data, skipping one internet trip.
+  * Only one internet http call to read old data.
+
 ## Usage
 1. Use `weed scaffold -conf=master` to generate `master.toml`, tweak it, and start master server with the `master.toml`.
 1. Use `volume.tier.upload` in `weed shell` to move volumes to the cloud.