If you just type in "Weird Al Yankovic" on youtube and sort by view count you have to go to page 6 before you stop getting results with 7 figure view counts. and the first page is all videos with view counts in the 10s of millions and higher. Some of them aren't even real videos, there's a windows movie-maker slideshow video for "Ebay" with 13 million views.
if the original song is dumb and stupid then I'll probably prefer Weird Al's version. So I kinda don't mind when he does songs I hate, cus that gives me a superior version to replace the original in my head with.
His style-parodies are usually the most interesting thing he does though.