My own personal math:
I don't really consider super incubators to be worth any more than normal ones, so 6 x 150= 900 coins. Even then, I'm reluctant to buy them at that price, so I'll only buy a few to use on 10KM eggs.
I'm level 38 and didn't really even want more lucky eggs, so they add no value.
Premium raid passes are discounted fairly often, so I value them at 80 each, so 10 x 80 = 800. I actually have more of those than I want to hold at any one time, but they might get used eventually.
I wanted a few Star Pieces, but 20 is excessive. Most of them will either be squandered or sit in my inventory forever, wasting space. 3 or 4 would have been enough, and I'm in no way desperate for Stardust, so it's hard to put an exact value on them. I would have maybe paid 100 coins for them, but I'm not even sure about that.
So essentially, 900 + 800 = 1700 value for 1680 cost, meaning a discount of 20 coins, plus some free lucky eggs I don't care about and Star Pieces. Just barely worth buying once for me, mainly because it's the only way to get Star Pieces at a price I was willing to pay once. If you need the lucky eggs too, however, it's a decent deal. Personally, I would much prefer if they just put regular incubators on a discount, without having to buy bundles of a bunch of different stuff.
