I agree. An A licence will get you in the door but you still have to sit the same exams for a B licence! ( to a lower standard though) Use your resettlement to finish the difficult ones but get the easy ones under your belt at your own expense.
The difference in salary is worth the effort. If you haven't finished the exams when you are looking for a job, to show a potential employer that you have passed x amount of exams is a big plus!
Good luck