Azure SQL Reporting Services - cost and options

Azure SQL Reporting Services - cost and options

At the moment, it costs $119 per month to use Azure SQL Reporting
services. We want to make the move to Azure SQL Reporting/SSRS as our
reporting capabilities are expected to grow quite dramatically over the
next couple of years.
Right now, only a few reports are run per month. This does not warrant
spending $119.
Options:
Hosting SSRS in an Azure VM. This will cut the price in half if a Small VM
is used ($67 per month). The problem with this solution is the overhead of
maintaining the server, but the ease of moving to Azure SQL Reporting
services (when the time comes due to high load) shouldn't be too
difficult.
Use an alternative reporting engine. I've had a look at Izenda, DevExpress
and Telerik, but they are expensive (around $600 except for Izenda which
has no price listing).
Deploying Azure SQL Reporting services when required. I haven't explored
this option thoroughly, but we could delete the Azure SQL Reporting
deployment after use and recreate it before needing it. Perhaps we can
automate this to deploy at 8am and delete at 6pm. This would cut the cost
in half, but I am not sure of the logistics here.
Any advice would help! Thanks
Original question was posted here but marked as off-topic.