I think the price has stealthily increased as the required dressings got more demanding. Like the initial pi could be powered by any random phone charger you had laying around. But the new ones are a lot more picky and demanding. The new one also really demands a cooling solution, which is yet another cost the old one didn't have without being an actual MSRP increase.

By the time you fully dress a pi now it's like $100-130. The pi itself is only like half the cost if that.