Unlimited cloud storage

Hi guys, the other day I received a newsletter from INTERNXT and I really like their idea, which is Encrypted and secure cloud storage, anyways the content of the message was an offer of Infinite storage space in their cloud with just one payment of 499€. I mean that’s a good deal but what do you think, is it worth it? I have a premium account with them where I pay monthly 9,99€ so in more or less 4 years I amortize the investment. Have you ever bought something like this?