A lot of criticism of Hong Kong Disneyland argues that the park was severely under-funded and Disney was trying to get away with the least they could possibly build.
However, I was examining the financial figures for the park and the other Disney resorts and the results kind of surprised me. HKDL allegedly costs $1.8 billion (Source), which if you adjust that for inflation is almost exactly the same amount that was paid for the Magic Kingdom when it first opened, and double what was paid for Animal Kingdom or Hollywood Studios and three times as much as California Adventure or Walt Disney Studios Park.
These figures show the initial cost paid for the park, and then that cost adjusted for inflation to the year 2000. They're listed in order of increasing adjusted cost.
Walt Disney Studios Park _____ 500,000,000 _____ 611,000,000
Disney California Adventure ___ 700,000,000 _____ 677,000,000
Disney's Hollywood Studios ___ 500,000,000 _____ 698,000,000
Disney's Animal Kingdom ______ 800,000,000 ____ 834,500,000
Hong Kong Disneyland ______ 1,810,000,000 ___ 1,601,000,000
Magic Kingdom _____________ 400,000,000 ___ 1,691,500,000
Tokyo Disneyland __________ 1,400,000,000 ___ 2,414,000,000
Disneyland Paris ___________ 2,000,000,000 ___ 2,441,000,000
Epcot ___________________ 1,400,000,000 ___ 2,506,500,000
Tokyo DisneySea __________ 3,000,000,000 ___ 3,723,000,000
I have more adjusted costs you can see here.
Hong Kong is still the cheapest of all the Magic Kingdom-style parks, but the amount paid isn't drastically less than other parks as I first expected. From a financial stand-point, it makes sense that the company couldn't justify more money: they were already spending a lot more than their recent parks had cost (TDS being the exception of course).
Still, the park certainly needed more stuff than what it had when it opened. The question is where all that money went to. I wouldn't have expected labour and material cost to be hugely inflated which makes things difficult for DLP. What was the money spent on?
... Or the source is wrong, lol.