Some sellers do.
It is difficult to give you specific locations as to where you can find cheap prices on old computer parts, but there are a few options available. You will likely be able to find what you are looking for on sites such as Ebay or Amazon.
One can find and purchase second hand Nintendo DS and games for sale on websites such as Amazon and eBay. They are also available on Preloved and Free Ads.
One can find used Dell keyboards in Denmark by checking the classifieds section of local newspapers and magazines, and by visiting second hand electronics shops. One can also find used Dell keyboards through websites such as eBay, Amazon and Craigslist.
The Dell Inspiron 1100 is a laptop over 10 years old so it is no longer possible to buy them new. When it was released in 2003 it cost $999. One can purchase them second hand on ebay now for as little as $40.
I haven really heard of Teachers getting discounts from Dell... Although Apple on the other hand has offers for all University students.
eBay is probs the best
Anywhere that sells computers really. You can customize and order any Dell computer or accessory online or over the phone. Sometimes if you actually talk to a rep they can clue you in on extra's and packages you wouldn't know about looking online. All electronic and office stores carry various Dell computers. If you want something specific then check it out online.
The cheapest way to buy a computer is refurbished, or second-hand, best found online at sites such as Craigslist, Kijiji or eBay. New Intel computers can be found at TigerDirect, Memory Express or other Independent retailers.
One can get refurbished Dell laptops from Dell, Best Buy, Dell Auction, Laptops Direct as well as eBay and Amazon online stores. Refurbished Dell laptops are alternatives to second hand laptops. Many of these laptops function very well and compete in price with brand new dell laptops.
The Dell C840 is over 10 years old having been released in 2002 so one is not able to buy it from stores any longer. It can only be purchased from places like eBay second hand.
If one is looking to purchase a server and has chosen the Dell 2650 server for their IT needs one can be purchased from eBay, Dell site, Amazon, New Egg, IT World, Server Station Nation, Top Racks, and Splus Direct.
Ebay or second hand shops/websites.