The only thing I would add about Ferrer is I'm not sure what he has left in his arsenal. He seems to have used all of his abilities to the maximum, and there's no shame in that.
I hope he continues to play as long as he can, and enjoy the game.
Me too - reading his interviews he always seems like he enjoys tennis a lot, both playing and watching it, so I think he'll be motivated to stay on the tour as long as he can.
Katie, re: Ferrer vs Nishi match - it doesn't seem too apparent but Ferrer took himself at the supreme level to beat Nishi. I believe this happened beasue of their past meetings and Ferrer did not want to lose to Nishi so he wanted to make sure he put out his very best out there and he did. Nishi was there at first in the very first set, but once, Ferrer took himself to that level, Nishi was mentally beaten right there. And since then on, after that remarkable performance, Ferrer had struggled immensely. In fact, I think that's why he had a letdown against Almagro and wasn't able to perform his usual level. And then lost in straight sets to Nole. I mean look at their H2H before this meeting - 12-0 Ferrer vs Almagro.
That's a good point Emma Jean - Nishikori was a potential major stumbling block for him and an important one to win after the Olympics. He definitely lifted his level a lot to beat him, and also played well against Baghdatis. He was just a bit too up and down in the other matches though (and poor in the final two). Almagro definitely performed above his usual level in their match though - played fearlessly for nearly three full sets. He's going to be coached by Juan Carlos Ferrero this year so it'll be interesting to see if he can help his mentality - he has a lot of talent but suffers mentally at crucial times in matches.