oh yea its worth it. if you smart about it and dont waste all your money on sending your guys out to do it all the time, you can make some pretty good cash.
for all the people saying you can't make a profit from crafting while lvl'ing, yourd doing it wrong. Slicing is a major source of income, as well as Bio so you dont spend cash on stims and med packs.
I play 4 toons with different crafting skills and all around lvl 25 right now and have more credits than I can spend.....I have enough to pay for all my skills for all for toons ATM. over 300k.