[butlike]

Entertainment.

It's also the only vice you don't have to ingest an outside substance for.

[smarf]

> the only vice you don't have to ingest an outside substance for

to name a couple: gaming, prostitution (okay you might incidentally ingest an outside substance but YOU DON'T HAVE TO)

[butlike]

I wouldn't classify gaming as a vice.

[nkrisc]

You could say the same for dog fighting.