There are of course plenty of benefits with the hosting of the reseller. You can also get some ideas from here. However, the most important thing that you need to note in this context is the long term and the short term benefits. At the same time you can also build the reseller business with different terms and conditions. There is absolutely no need to give any excuse to the service providers. Make sure that the necessary disk space is there and this is one of the most important benefits of hosting the reseller.