Both were brought by people filled with excitement, breaking sales records never before seen, and the excitement is still there with both having issues with demand outside a few countries were both put out a bit extra so others can buy it.
They already have games that have games that sold over 500,000 copies, and they are not even really 2 months old yet. It's amazing!
I see these two consoles breaking the 100 million mold in a very short period of time. Especially around next year with the expected updates, fuller game librarys and probable price cuts.