I love collecting custom painted versions of my favorite hard baits. I said collecting because I don't fish these. In fact I never added rings and hooks to them.  I'll dig out a couple on days when I want to go fishing, but for some reason or other can't.  They're kind of like a pacifier for a fishing addict.  I have a custom built rod that I do the same thing with, but I actually use that.

I fish mine. They are replaceable.

"A lure unfished...is an opportunity missed." ~me

I like both answers here.  

There's something about dog-walking plugs - you want to own them, you have a narrow window to fish them, which is also probably how you begin your morning.  

They do go back in history as the oldest described bass lures. 

"Walking-the-dog" was coined by Paw-Paw Lure Co. c. 1918, but in his 1881 book, Doc Henshall referred to "The Bob" and said it went back to Florida and pre-Revolution times.