Re: Don't shoot the messenger!
The comparison is heavily flawed. Dropbox's model is different: files are inherently available offline; there is less lock-in and cross-selling.
Of course, an annual subscription works out cheaper but what if you want to change after 6 months?
Dropbox prices also apply for business, Microsoft's doesn't
I don't want Skype since Microsoft broke it, and already have the bits of Office or their equivalents that I want. Nearly all my international (EU + US) calls are already covered in my phone plan.