No, I believe the amount charged today for admission compared to even ten years ago means they can afford far more to reinvest in maintainence and upkeep compared to when the parks were younger.
A lot of the reason they continue to raise 1 day tickets to such high levels is to discourage 1 day visits. The current cost of a 10 day ticket, for example, is just $36.50 per day. You can't just put up that chart and ignore inflation, rising minimum wage, and a different overall economy vs. the 90s. 10 years ago (2005) was also the midst of a significant travel recession due to 9/11. Ticket prices couldn't be raised commensurate to rising costs and inflation because the market can only bear what the market can bear. Demand is demand is demand, and ticket prices across the board reflect this.
I still say that park maintenance costs in the 90s wern't
nearly what they've been over the last 10 years, thanks to two
very young parks (AK/DHS) and the spending splurge in the 90s.
I also think that documenting maintenance issues in the parks has become some people's full time job. Digital cameras / cameraphones are so prevalent today, the internet has proliferated, and there's a significantly larger magnifying glass on those issues. These days, people can much more readily "compare notes" on the maintenance issues (which by the way are bound to be even more prevalent in aging parks). A lot of issues from the past simply weren't documented as well, even though issues
were there in 90s.
I'm not trying to claim that you're 100% off base. I do understand that there's at least a case that Disney didn't spend enough on maintenance/refurbishment in the 2000s (same goes for Disneyland and Universal). I'm not giving Disney a "free pass" on what might have been an overly conservative spending plan during a changing of the guard and uncertain economies.
But again, I think you're too quick to gloss over the fact that costs are much higher on maintaining aging parks, along with that hurting economy of the mid 2000s, all of which are bound to manifest in some way. I suppose you could argue that Disney should have thrown caution to the wind and thrown money at the problem(s) anyway, but we weren't the ones whose jobs might have been on the line for those hard decisions during a weaker economic time, but back then, Disney didn't have the benefit of foresight to know if/when the travel industry would rebound. A business can't be both a business and a charity organization. We could go on at length about the awful "business system" in America, but Disney is hardly the only corporation where perhaps too much profits are pocketed by the rich bigwigs, and too few dollars get reinvested. But let's compare to the rest of the country (including the travel and theme park industries, especially in Orlando), to see what the
other similar organizations did during the lull of the 2000s.