Hmm!! the way u compared A/c vs Nsg was funny and in my opinion was not correct. I worked as an A/c in Seattle for 5 yrs. I have a Master in A/c degree. But i didn't like it due to the same reasons as urs. Always doing the same every day. Then i moved to CA and went into nsg career. Oh boy, it is much harder than i thought. I was an A student in A/c but in Nsg.. Very very hard. So, first of all, Nsg is not a joke. U have to have a passion to help people. If u think about money and businesses only. Nsg is not ur type. U will miss the compassion touch with helpless patients. So far, i felt that nsg is very challenging (only if not worrying too much about money) and satisfying (thinking that i did something valuable with my life). Again, this is just my opinion.