I like night flying as well. Just my risk level assesment now means I much prefer have two engines, preferably turbines, and full IFR instrumentation.
As an FI it opens a heap of potential for getting mucked around by the boss and very long days with very little gain. How much does it cost now to get rid of it? 400-500? If so thats 25-50 hours to make it pay for itself, but the actual hours worked/sat at the airport waiting for it to get dark will far outstrip any benefit gained. Even instructing way up north it was a pain having it. And that was at a school who had a fatality doing night ratings.