Good bowling is hard to find in Toronto, and perhaps Playtime Bowl is it.
We arrived just before 9PM for Playtime Bowl's all you can bowl from 9-12 for $9.99 (on weeknights). There was already a big line, but it moved quickly and we ended up bowling in the "VIP Back Alley" which was just a slightly fancier version of the regular bowling area for $11.99 each.
My bowling partner in crime and I bowled nearly 12 games (poorly) in those three hours--but you can have up to 6 people on each lane. Beer was $22 a pitcher--not cheap, but pretty good if you consider how inexpensive three hours of bowling fun was.
I will likely avoid this place on weekends (too many teenagers) but it's definitely a good place to roll some strikes (or gutter balls) on a weeknight.