Originally Posted by nthinuf

It comes down to your personal tolerance for non-stock handling and looks. Would you be better off with a more complete kit that addresses more of the issues involved with lifting? Of course. Can you get by with a less expensive lift? Yes --> and then add more components as you go...

At 2.5":
your caster will be low, causing some flightyness. Can you live with it? Lots of people do. If it bugs you, grab a set of front adjustable ca's

both axles will be shifted to the sides. With stock tires, you may not even notice it. With larger tires, it will be very noticeable that one side is sticking out. As long as it is not causing issues with the computer controlled steering/braking systems, you can live with it until you get around to adding brackets or adjustable trackbars

the swaybars will be angled down. On streets and fire roads, this should not be an issue. You will want to be very careful if you go offroad and flex. Short links can cause the swaybar to flip around backwards, which will do some damage. (same with being on a lift at the shop!) As long as you are aware of the issues, you can add these later.
Just get a grasp of what each of the components does, and decide for yourself what 'you' want/need...