Yyzsantabarbara,
Have you considered putting more money toward interconnects and speaker cables and a good power management system versus taking a chance on a $40,000 amp that you will only really be hearing after it's been broken in.
Or maybe split the difference and use the remaining $20,000 toward interconnects on speaker cables and a good power management system.
Or maybe a really nice car that's $40,000 higher then what you were planning to spend assuming you need a new car. I still find it annoying when you spend a lot more money on a car you have to spend a lot more money on freaking insurance because idiots still steal cars