The a'la carte options from the 70's/80's are one of my favorite things from the era....You could really personalize a car, and as a result, today you can really get to understand (or wonder about) the mindset of the person who ordered it. It also means that there are very few identical cars, as there's usually an option or two that separates even extremely similar cars.
My 84 Camaro, which my dad ordered new is a real mixed bag....V6 (which was an option over the iron duke 4cyl), rally wheels, sport mirrors, F41 suspension, upgraded tweed cloth, Delco tape deck, rear defrost and (rare) overhead console with fashlight. No A/C, manual windows, manual locks, no cruise, no tilt, no t-tops. Says he wanted a reliable simple daily driver that was comfortable and handled well, power accessories would only add complexity and problems....and I guess he was right because he drove it daily for 20+ years.
My 85 Trans Am on the other hand is a nearly fully loaded Trans Am for the year...WS6, G80 limited slip, T-Tops, 'fancy' two-tone cloth, overhead console, 16" alloys, Aero wing, A/C, cruise, tilt, power windows and probably more I am forgetting. However, they did not opt for the 'new for 85' TPI V8 and stuck with the traditional 4BBl Carb. The real weird part though is no power locks, who gets power windows, A/C, upgraded stereo, and all the other gadgets, but doesn't go for the power locks?