AV Mythology:

The often heard refrain is “…you can buy it for less on the Internet!”. Upon reflection, it may be quite the contrary. After factoring in professional installation costs (assuming you can find a reputable firm to install these goods), the possibility of grey goods, delivery charges (to the “curb” if living in an apartment building) and phantom or no warranty the Internet prices become less attractive and in fact may become more expensive.

It is easy to “post a product and a price” on the net. Delivery of professionally installed manufacturer protected products are something else. In the language spoken well before Al Gore invented the Internet “Caveat emptor” (buyer beware). Be certain from whom you make significant purchases and what those purchases include!