Server Routing

Will the regular ping spikes ever stop? Why does this happen? Do the guys at Blizzard not have enough money to properly set up the server infrastructure?

To cut costs, WoW is now running in the idle cycles of Bing servers.

how often does it occur? does it last for a while? please give more information

It could be an ISP issue, I don’t have this issue, but I know people who live in countries that have terrible ISP routing and it happens.

Canada. This only happens in WoW.