Yes Enchanting is really worth it. I also have a Tailor/Enchanter; your main staple for the start of the game is bags every body needs bags. With stacks of unbolted cloth being second. LVLing is a little slow but then again why did you pick a Warlock in the first place? Tailoring is handy at the upper lvls, I believe enchanting is that same way because what is really the point of enchanting an rare you are going to get rid of in 4 or 5 lvls.

i have a 45 shaman whos a enchanter amd IT HELPS i do +this +that on my self and Dsenchanting stuff that gets old/sell the mats make money  i not rich and my enchanting is 270..PS this is my main deleted my other one (woops)still have over 150g