My grades from my undergraduate program are good (4.0/4.0 GPA); it's possible my grades could decrease a bit, but I don't expect them to drop significantly in the future (although you never know).
I really do want to learn CS better; I think the opportunity to do that would be good. But the expense / opportunity cost is high enough that it does seem like more of an economic question of "will this help me get a better job?", which there doesn't seem to be a good answer to.
> At least where I am, the level of CS teaching in Universities is not as good as in the US (at least my limited sample of known people/universities).
Would you mind saying where that is? (I can email also if you don't want to here)