I am in the same boat. I am in South Africa and in the last 2 years I have been the sole IT support for an agency as my employer outsourced me to one of our clients who has a branch elsewhere in the country where my boss does not have an office.

Since taking over the network calls to senior support has almost become non-existent and the general user issues in the office have dropped considerably. My boss informed me that due to the contract staying the same I would not be getting an increase, but what he forgot to say was, the reason the contract was staying the same was due to the reduced contract obligations the company would receive. Also even if I upgrade my skill set, it doesn't really matter as my boss usually says that either they do not use that certain qualification or that I should have had the qualification already.

The sad thing is that I really love working where I am working right now, despite the working arrangement. My main fear is that where I am now technically, is where I will be in 5 years time, and that is one of my main reasons for keeping my eyes open for any opportunity that might be out there.