Personaly i would buy a Kit if your new,
Just so you know everything what it takes to make one, you learn alot when its your first time, Makerfarm is a great example.

But if you have more money and can buy a Ultimaker/Zotrax etc, Well go for it :P
But i personaly wouldnt buy a solidoodle, since Ultimaker 1 is pretty cheap atm, i believe 950 euros (+ free 3doodle, atleast that was it a few weeks ago) But it is a kit, But still a great printer ^^

Its all up to you and if its more like a hobby printer or if you realy wanna invest money in it, and what you want from it, example a classic 8x8x8 build volume, or a Delta printer.