Really, the only benefit of using Nitrogen instead of plain old air is that Nitrogen atoms are larger than oxygen atoms. Therefore, it takes longer for them to seep out of your tires. The end result is that you have to add air to your tires less often.
If you used Hydrogen, then you would have to check your pressure daily perhaps. Hydrogen atoms are tiny and can seep out rather quickly. Not to mention that it is rather flammable.