Ich habe seit Jahren eine 64 Bit-CPU
x64 entered the consumer market about 4 years ago, 4 years ago many businesses still ran Windows 2000 and even earlier editions.
The problem is not that you need and want to, the problem is money, the one who pays the most makes the demand. We can yap here for years about this, nothing will change the Golden Rule.
The Golden Rule is: "The one who has the Gold makes the Rules"
and in this case its called: "The one who has the Big Corporate License, makes the Rules"