docs: update costs description (#13647)

www/apps/cloud/app/comparison/page.mdx

@@ -139,10 +139,10 @@ However, before choosing self-hosting, it's important to understand the challeng
         [Cost](#cost)
       </Table.Cell>
       <Table.Cell>
-        Costs will vary based on your chosen infrastructure and usage patterns.
+        Complex pricing and often expensive as you scale.
       </Table.Cell>
       <Table.Cell>
-        Competitive pricing model with transparent plans.
+        Transparent plans with competitive pricing.
       </Table.Cell>
     </Table.Row>
   </Table.Body>