Why is it so difficult to find and expensive to buy a spare bulb for a DLP TV?

It seems particularly difficult for me Gateway DLP TV 56 ", but other brands do not seem much better.

For the gateway can also be used bulb or GEM Vizio RP56 GDT 56DRP., The three are the same customized by Delta Electronics Manufacturing Co. Ltd. The only one of the three GEM is still available, contact the dealer 3G Technology, Inc. here: http://www.gemstarusa.com/index.php/index.php?option=displaypage&Itemid=123&op = = Page & SubMenu

Samsung BP96-00826A DLP Lamp Replacement Video/Guide (Small Bulb)

Mitsubishi 99105 – 915B403001 Projector Light Bulb $69.00 Mitsubishi 915B403001 DLP Projector / Stage / Studio Lamp with Housing…

Z62DC1D Lamp $78.00 Lamp module includes both housing and bulb Manufactured to the highest ISO9001 standards to fit the projector model(s) listed under the Specifications tab. Carries a Free 6-month manufacturers warranty and has undergone strict quality checks for beam performance, ignition, voltage, appearance, connections, and run-time, so you can trust it to work flawlessly in your projector. 9-month warranty is …

OSRAM 69377 RPE022 RPE-022 RP-E022 P-VIP 120/132W 1.0 E22H BULB ONLY $72.95 …

LED Technologies DPL Nuve Handheld Light Therapy Device $119.99 DPL Nuve Handheld Light Therapy – LED light therapy helps ease muscle and joint pain in just minutes a day! Amazing handheld LED light therapy penetrates deep into skin tissue, going right to the source to help relieve minor muscle aches, joint pain and stiffness. How does it work? Powerful red LED and infrared lights illuminate intermittently, releasing photons (a form of energy) that stimulate p…

ZENITH 6912B22007B Philips Bulb $89.00 THESE ARE THE SAME OEM LAMPS INSTALLED BY THE FACTORY. CHANGING THE LAMP TAKES MINUTES AND IS ENVIRONMENTALLY FRIENDLY AS THE CAGE CAN BE RE-USED INDEFINITELY.ZENITH 6912B22007BThis bulb Fits the following TV models52SX4D62SX4DZ44SZ80Z52SZ8052SZ8R (LG)3 Month Exchange Warranty on the bulbBulb is rated for 6000 HrsThis is an OEM bulb made by Philips…

New – Viewsonic Replacement Lamp – BX0616 $394.80 General Information Manufacturer/Supplier: Viewsonic Corporation Manufacturer Part Number: RLC-049 Brand Name: Viewsonic Product Name: Replacement Lamp Product Type: 230 W Projector Lamp Technical Information Lamp Life: 4000 Hour Normal 6000 Hour Economy Mode Compatible Devices: DLP…

New – Mitsubishi Replacement Lamp – J36949 $474.00 General Information Manufacturer/Supplier: Mitsubishi Manufacturer Part Number: VLT-HC910LP Brand Name: Mitsubishi Product Name: Replacement Lamp Product Type: Projector Lamp Technical Information Compatible Devices: DLP…

InFocus X2 Multimedia DLP Projector $699.99 This multimedia projector is built to travel, and priced to move! Whether used at home, in a conference room, for educational or entertainment applications, the 6.8 pound X2 has the power and portability you need. Lamp: 200W SHP/3000 Hours. Aspect Ratios: 4 x 3 standard; 16 x 9 wide. Contrast ratio: 2000 x 1. Display: DLP by Texas Instruments. Image size (diagonal): 2.7 ft to greater than 21.6 ft….

Sony XL-2400 Replacement Lamp for Grand WEGA 3LCD Rear Projection HDTV $36.48 Sony’s XL-2400 replacement lamp for the KDF-55E2000, KDF-50E2000, KDF-46E2000, KDF-E42A10 and KDF-E50A10 Grand WEGA 3LCD rear projection HDTV….

TV Lamp Module XL-2400 for SONY KDF-42E2000, KDF-46E2000, KDF-50E2000, KDF-50E2010, KDF-55E2000, KDF-E42A10, KDF-E42A11, KDF-E42A11E, KDF-E50A10, KDF-E50A11, KDF-E50A11E, KDF-E50A12U, KF-42E200 $36.44 Pureglare brand new replacement lamp module for the following projector/TV:SONY KDF-42E2000, KDF-46E2000, KDF-50E2000, KDF-50E2010, KDF-55E2000, KDF-E42A10, KDF-E42A11, KDF-E42A11E, KDF-E50A10, KDF-E50A11, KDF-E50A11E, KDF-E50A12U, KF-42E200…