I had a similar experience thanks to the 99 cents only liquidation. I bought those, and now I am hooked, thinking I would only get the ones I actually liked, but these 50-60% off sales made the OCD in me want to collect them all for completeness sake, just like disney infinity's death. And I haven't even bought a starter and played it yet.
But I am not sure how you got away with only spending $166 for all you mentioned.
Excluding the few you said you don't care to collect (just wait, you'll want them), my numbers for the cheapest I have seen things in the past few months:
starter pack ~$35
lego batman movie story ~$20
ghostbusters story ~$20
fantastic beasts story ~$20
~ 5 level packs not available at 99cents 5 x $12 = $60
~ 4 team packs not available at 99 cents 4 x $10 = $40
~ 15 fun packs not available at 99 cents 15 x $4.80 = $72
~$20 for the various $1 packs at 99 cents stores
So I see easily $250 - $300 to get everything you mentioned. How did you get them for so much lower?
People on FB, other deals, BBY screwing up and giving me some stuff for free because of it. Not really things that can be duplicated.