I'd say the best benefit you'd get for GLD over no status is use of the priority lines for security, boarding before the herd (lots of overhead space before it gets used up), checking in with the business class lines, and most importantly (for me) is sitting in the exit rows.

If this is worth $160 to you, then you know your answer.

I know you get 25% more RDM, but I don't think of that as significant for me.