Well, isn't Eurobeat kind of only popular in Japan? haha... I know it's originally from Italy, but I don't hear of many other places *loving* Eurobeat xD Unless it was forever ago--but even so, I feel like eurobeat = Japan...
Plus, the longest running remix series in the world is Super Eurobeat (20 years and over 200 volumes, and continues to release).
The thing that shocked me the most was mainly the fact that Eurobeat hasn't been in vogue since the early 2000s. Though as mentioned above, it doesn't really have that much of a lead in terms of sales.
^ That's really cool! First time in Oricon history!
Nothing about having 4 top 10 albums + 2 top ten DVDs all in the same week? Haha.