[Sarix]

If you're 70 and have your epic mount, you can do dailies and won't struggle for money. The real choice is whether you want to stockpile herbs and look in to taking inscription. The plus side to tailor/enchant is that a ton of tailor greens/blues can be disenchanted at a small profit.

But to answer the second question, dropping almost any gathering profession for a craft will be a $ losing prospect.