dddd

For lock-and-leave usage, my "grocery" bike needs no "lightweight" or "competition" pretensions, so just about any Goodwill-sourced $60 bike will do (adding in the effort/cost of tuning it up and outfitting with an accessory or two).

I guess then that it is perhaps fashion-conscious riders of newer/better bikes that might need extra protection, not that someone won't someday try to steal my locked-up old Supersport that looks like it has spent much of it's 50 years in the city.

A ten to fifteen-years-old lightweight carbon bike can be bought for around $600 and is light enough to be carried around after the ride is over. I've seen riders who remove the wheels and put their bike in a shopping cart while making purchases at WalMart, and for that matter I have wheeled my road bike through a less-crowded store (where parking the bike isn't usually allowed). Some markets allow a bike to be stowed in an unused checkstand aisle during low-traffic hours (I've been invited to do this).

What burns me up is employers who won't provide any safe place for a commuting employee to park their bike, even when there is plenty of space inside where the bike won't get in the way.
And the excuse that "insurance" won't allow a bike inside of a building, should be a law against that!