If you are concerned about physical security, check door frames, windows, and thresholds (especially when lever locks are used). Crime doesn't happen because people pick locks.
I live in a third world country, security is very important, my house got people jumping inside at least 7 or 8 times, that we know... maybe it was more and we failed to notice.
One year, while my family was out in a christmas trip, they decided to use the opportunity to actually get inside the house.
The thing is, beside tall walls, dogs, electric, spears and razorwire, we also had solid brick walls, steel window frames with grates, steel windows, and all doors to the outside were two doors in the same frame, the internal one made of solid wood, and external one made of steel, frames also made of steel.
The thieves instead just made a gigantic hole in our wall, until it was big enough to use power tools or something, then they destroyed the frame around the door locks (all our external-facing doors, both wood and steel, have 3 locks).
So, the weakpoint was bad quality bricks, we alter tested and found out our bricks were so shitty that hitting them with a crowbar made them mostly instantly crumble, the guys probably did zero effort to destroy our wall, probably if they had the time it would been easier to make a door-shaped hole in our wall instead of cutting the steel frame.
Perhaps you're aware of Rhizome Manoeuvre. It's common in urban warfare to make holes in walls. Doors and windows are too often booby trapped.
(It also sends out SMSes, but I rely completely on it running off intruders well before they get to steal anything or anyone has to intervene.)
IOW, there is no hard data to say either way. If you're protecting some one from stealing your TV or your concerned with smash and grabs, then yes, locks aren't generally your weak point, all though they can be. If you're worried about someone planting a RAT device in your network closet, or key logger on someone's PC, undetected, then yes, it's a concern.
Relevant XKCD: https://xkcd.com/538/
I can think of two reasons to have a good lock.
1. Not all insurance will cover theft unless there's evidence of a break-in. [1] This was a problem with the bump keys where no evidence of a break in was left, other than maybe some scratches on the face of the lock itself.
2. Padlocks, often including bike locks, can often be shimmed or raked easily. It's one thing to carry around a pair of large bolt cutters in downtown manhattan, it's another to carry a little shim in your pocket.
[1]: http://united-locksmith.net/blog/8-security-measures-to-prev...:
"And a burglar that breaks in with a bump key shows no visible sign of forced entry, but further examination from an expert can determine if the pins were manipulated. Insurance companies may still be resistant in paying on a claim, even with a forensic locksmiths findings."