"Upgrades" are just the latest numbers game that builders are playing to keep prices up and clearing out inventory. They won't reduce home prices, but they'll keep throwing out big numbers on prices of "upgrades!" that they threw in for "free".
I remember SunnyD said that his builder was going to charge $100 for each drop to set him up with ethernet runs. It cost me $100 to wire my entire house with cat5e...and that includes wire, plates, and keystones. Obviously my labor was free...but you can see the astronomical markup there and the fluff associated with it.
There's other things like granite counters that can be wildly overblown in costs by a builder. If you have a granite counter shop come in and quote you a solid 3cm slab of granite, and have it installed with a fancy profile you could be looking at 70$+ a sq/ft. A contractor might go to the slab yard pick out something that's damaged and thinner (like 2cm) and have it cut out/down and install it himself(it's just silicone glued to the counter top boxes) for under $15 a sq/ft. What's he going to tell you that it cost? As much as he can to make you think it's a huge upgrade he's throwing in for free.