It seems like you've covered all the bases here. The ad doesn't offer much to work off of, but I don't see much else that you could have done. Nice work on the Terminator references and robot takeover though.
This ad is very abstract. With the robots to me this ad is saying that this technology will do all the work for you. I say this because of the line " when computers get down to business, they move up to maxell." You did point out the personification in this line. and i would say that it does reflect the idea that the computer will do all the work.
I completely agree with your analysis of the repetitive use of gold throughout the ad. I think it's a great way for the Maxwell company to emphasizes a type of "once you go gold, you never go back" type of mentality, to add on to the fact that because of the futuristic style of the ad, these computers will basically do everything for you.