Nano is faster!
Bitcoin is slower.

Nano has no fees, you send 1 Nano you get 1 Nano!
Bitcoin has massive fees, you send 0.01 Bitcoin you get 0.0097 Bitcoin.

Nano has superior tech!
Bitcoin is outdated.

Nano is the future!
Bitcoin is the past.

Why aren't you holding any nano?
the development of nano into superior coins is indeed good, but don't expect if nano will be a better coin than bitcoin. in any way bitcoin is still superior and the fee problem I think the fee for bitcoin is worth the value of bitcoin today.
Do you understand the issue then? If bitcoin goes to 100,000$ fees will be in the 100$ for moving even a tiny fraction bitcoin. This is not sustainable.