by Dr. Cadmium » Wed May 11, 2011 9:56 pm
The tray for a microwave is often worth more than the rest of the unit is worth scrapped - but you must use the exact part number when listing. Always record brands and model numbers before you pull the tray, otherwise they can be near impossible to identify later. There are a lot of subtle differences in design that make similar looking trays incompatible.
Also, sometimes if you look up a tray from microwave model X, a manufacturer will recommend tray model B as a replacement. Note that this does not mean that tray B is what comes stock with the unit! Sometimes with microwaves the replacement tray is produced to be compatible with a variety of models and is smaller in diameter. This means that if you list the tray you pulled as that particular replacement part you could wind up shipping a tray that doesn't fit.
Whenever you sell a replacement part, it should be sold at a fixed price - unless it's a very rare or collectible part.
Reason: when someone is looking for a replacement part, they want it right away. No one wants to wait a week for an auction to end, only to be outbid at the last minute - they've wasted a week of their time and they still can't use their microwave. You'll get better prices for parts selling them at fixed prices, but sometimes you'll have to wait a couple of months (assuming you list correctly and price items competitively). This also goes for other kinds of parts: cars, appliances, TVs, etc.
As scrap, glass for cooking applications is usually not cost-effective to recycle.