Was Spinrite even able to bring the drive up and do it's thing? Unless the drive is physically dead, either electircally or mechanically, there is usually a chance to get something back unless it's been overwritten. The gold standard used to be 39 overwrites to FULLY erase data. Recent research seems to indicate that today's drives pack data so tightly that even one overwrite can effectively render data beyond retrieval. 

If here was some kind of power surge, the logic board on the drive may be fried. In theory, it can be replaced but you need the exact same model and revision board.

One old trick is to the put drive in a zip lock bag and stick it in the freezer overnight. The cold might shrink binding parts enough for a very quick attempt at retrieval - definitely a last gasp, just before throwing it in the trash kinda thing.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken