$250 is the floor for 12V Festool drills with batteries and chargers unless you can get one used. if you buy used, make sure the price takes the portion of the warrantee that is used into account. All of the $250 drills are 12V. For an extra $50 you can get a kit with a right angle chuck. In the 18V world, you can get the bare tool for $300, but you'll need to add batteries and a charger. There are some deals to be had in the 18V line right now, at least in North America, so be sure to shop around if you go that route.
If you get a Festool drill make sure to consider the cost of accessories. Centrotec bits are not cheap. Festool drills don't come with good solutions for 1/4" ball detent bits, and although there are after-market solutions, all of them involve compromises. (For example, Snappy makes an adaptor, but it adds length). You can get some useful chucks for Festool drills, but again they are not cheap, and some chucks are limited in the bits they will accept. So before you buy, make sure you understand how you are going to use the drill, and what additional accessories you will need.
Festool has a variety of battery form factors, depending on the tool. Don't just assume that you can start with a drill and build a large collection of tools over time that will use the same batteries.
Finally, unless you have a particular need for something that a Festool drill does particularly well, I'd consider other alternatives. Both Bosch and Milwaukee now make 12V "installer" drills with interchangeable chucks, with the advantage that the batteries fit a wide variety of other tools in their lines. I have the Milwaukee drill and like it quite well. Neither of those drills was included in the review that you referred to.