Over the last month Ripple does not perform really well.
From 15 to 25 in just one day.
They accomplished deals with 10 Banks lately.
Next month Thailand and Japan are ready to trade via Ripple.
Moreover they target China now because they see it as a keymarketplace for global financial transactions.
Ripple was believed dead by many, but to me it seems underrated with a good potential to return to 45-50 cent within the next weeks.
I guess a 100% ROI should be fine.
So you better go ahead and buy some now ^^