I've heard - You can get paid for what you do; or you can get paid for what you know.
I've always believed it is better to get paid for what you know. Your body will almost always wear out before your mind does.
Go Geologist if you have an interest in that field. It will take longer, but it's a better investment in your mind.
(this is my opinion only and I have nothing but respect for Electricians - if there are any here it would be great to hear from your experience)