Moving up in the world! What should I buy with winnings?

[CardsSpeak111]

Started with a $5 free bonus on Stars. Now crushing $0.10 NL obv. Will move to $0.25 NL once my roll gets to $200.

I'm thinking of picking up a better mouse (Logitech laser?) with my winnings so far. Think of it as an investment towards even greater success in the future.

Do you think this is a big enough sample to prove that I have what it takes to play professionally?