I'd probably vote against it, but I suppose if it melted you could always use the SSD in something else.
Just recently I got around to putting a 500GB hard disk I bought *ages* ago into my 17", intending to install Mavericks on it just for LoLs. (It's free, after all.) I have to say that I remember the thing performing pretty well when I put it aside but today it's definitely quite noticeably slower than the i5-equipped 2010 Unibody that replaced it. (And is actually slated for retirement soon.) Can't go home again, I guess. It's still pretty comfortably over the 'pain threshold' and a perfectly usable machine *today*, but it doesn't have much a future.