Well this is a trick question, because you definitely should not limit yourself to one.
As a buyer
As a seller on all these marketplaces I have seen price discrepancies on thousands of items. It makes sense that the price would not be exactly the same, but sometimes it can be more than a Grant! As a seller I have taken advantage of this by selling on one site while purchasing on another. I have purchased from Amazon and sold on Ebay and vice versa while still making a profit after paying fees as high as 15%. When you have more information you are generally better off, so do your research.
Amazon
If you are afraid of buying things on the internet, Amazon would probably be the safest, easiest place to start. It is pretty easy and there are many benefits. If the item is eligible for Prime shipping you will get it fast, though I recommend getting the $1 MP3/video/kindle credit for No Rush shipping. Also, returns are fairly easily and customer service is very high. One downside is that items must be in their catalog, so you won’t find handmade mittens for your guinea pig. Continue reading “Should You Use Amazon, Ebay, or Craigslist?”