Depends where your ordering from... if its not where your location is don't buy it.
if its in where your from buy it.
Lets say your from UK and you want a dell? sure they are based in UK so it will be delivery by van, which is better then getting aboard on a plane.
Its a choice only you can make and think of, would you risk your card now a days online and your information? I would, why? because I'm a risker lol.
but anyway, go for it if you really want it.