Looking at the Manitoba Telecom (our ILEC) guide for home wiring they don't recommend cat 3 for anything but alarm pre-wiring now.

FREQUENTLY ASKED QUESTIONS
Why should all rooms with the exception of
the bathroom be pre-wired with a Cat5e wire?
Technology is changing: in the near future, home
networks will expand to include more than just
computers and printers. TVs, gaming consoles,
home security systems and even smart appliances
(such as fridges) will require Internet connections.