The gap in reliability, quality and functionality between the little Ikea drill or $50 Black and Decker and even a low end Dewalt is _huge_. The gap between that and a $300+ drill is _mostly_ in longevity and its ability to stand up to sustained abuse.

Keep an eye out around father's day. There's pretty consistently sales on tools, or at least some sort of deal. I picked up tools up on fathers day a while back and it was was on sale _and_ included two extra free batteries. The batteries charge quickly enough that I've never been able to run them down before the other could charge.

I fought with cheap power tools for years before I finally bit the bullet and I regret not doing it sooner.

Saves _so_ much time if you need to do more than a single hole + screw.

Having multiple of some seemed very silly, but it really is so useful!

Reciprocating saw is also useful to have it lying around, especially if you live in a single family home.