Nothing wrong with old Craftsman routers if you don't mind a little runout, noisy universal motors, lack of adequate dust control, plastic innards where metal should be, and now, difficult to repair (unless you find a like unit for spare parts).
Nothing wrong with pawn shops either--burglars gotta have customers or they'd be robbin' folks, right? Actually, the average wood worker is one of the pawnshops' benefactors. Pawn brokers have all kinds of requirements to adhere to and serious penalties if they don't.
The wood worker who acquires/buys a new tool and then fails to engrave/etch, photograph, document the make, model and serial number of the tool(s) plays right into the hands of both crooks and marginal slacker pawn brokers but also the flea bay, CL and dozens of other on-line disposal sites. The police aren't going to task their burglary units trying to enter odd-ball owner descriptions unless the object is truly one-of-a-kind, very over the top valuable, etc. The National Crime Information Center needs the identifiers cited above to positively identify stolen merchandise so it is useful for officers who run across equipment in street contact, raids, dumps, pawn shop inspections & records. Most honorable shops wouldn't think of taking a piece with a defaced, unreadable or missing serial number--it just too easy for them to get burned.
On the other hand, if you accurately maintain records, you can help fight crime significantly. A pawn broker who takes a piece of equipment with an intact s/n, etched operator's license number, etc. will usually have the photo and thumb/fingerprint as well as a copy of whatever POS ID the crook or mule used to pawn the item. This is what coppers refer to as a good lead! Finally, if you are visiting a pawn shop and notice items with defaced serials, company logos, etc. take a pic and shoot it to your local Crime Prevention Unit--it might result in an arrest (give up the idea of a conviction---only plea bargains happening these days ;( )