Cat7 Ethernet cable??

[BIG_M29]

Can someone explain to me why these are not easily purchasable? What/who are they used for?

I ask because I was reading about them and I need to replace my Cat5e cables at home. I came across Cat7, but when I looked into actually buying a cable, I can only find Cat6a. Have I missed something? Are they not meant for consumer use?

To complicate it further, I had Virgin Media pop round to replace my router today and the chap told me that Cat7 will be available to everyone soon - is that nonsense?

 

[BIG_M29]

Thanks for the replies! As far as Cat7 goes, it's more clarity I needed than anything, and the VM guy threw me off.

I don't 'need' a Cat6a cable, perse, but I am having problems with my connection and my current cables are very old and looking a little bit sorry for themselves. It's more that I need to purchase new cables, so I may as well get what is more future-proofed, I guess!

 

[BIG_M29]

Router to PC.