Recently Microsoft announced Premium Edition of SQL Database. In simple words, it allows you to reserve the capacity so that it is not shared with other tenants! Similar to having your dedicated SQL infrastructure minus the maintenance overhead that comes with it.
Caution – This could be a double-edge sword though. I believe that auto-throttling in cloud environments helps promote good architecture and coding practices, hence having a dedicated environment with elevated limits may be seen by some as a solution to bad architecture and coding problems; instead of fixing the code, they might be inclined to throw more capacity at it. Be careful!