- Never buy it in the first six months of release, even if it is a holodeck.
- Read/watch review. Not only from fanboys but also from rivals and people who despise this gizmo.
- If its expensive (and a bit out of your range), wait to see if there is any competing products. (I am still waiting to see what Google has to offer before getting iPad)
Frankly I am surprised that most tech savvy consumers don't follow some of these rule.