[masraum]

I've been looking on eBay to buy some used door locks or door lock cylinders or padlocks as a cheap source of practice locks so I'd have some variety without having to spend much.

Something popped into my head as I was cruising ebay the other day. When we sold our home 5 years ago, I sold a big box full of various door knobs and dead bolts, at least 5 and probably more like 10-15 different locks in all at a garage sale. I'll bet I sold the whole box for $5 or less. Now I'm looking at paying a lot more than that for something very similar. I'll just have to watch ebay for the occasional really good deal.