Für Elise is actually the most recorded work by beethoven. I was also surprised by this.
Für Elise (239)
Yes, i find it quite surprising too.

Of course, as Thierry said, it is by far the most played piece, but for that reason, and also because it is a very simple piece (for a pianist that is at a "recording" level, not for me...still struggling with the 2° interruption

), i beleive most great pianist do not bother to record it...
But, facts are facts, and it seems that 239 pianists have recorded it !!!