[Soundy]

Wireless isn't a "premium" - for the most part, it's a waste of time unless you're using specific, purpose-designed stuff. Most analog wireless cameras operate in the same 2.4GHz band as WiFi, cordless phones, cordless keyboards and mice, and any number of other sources of interference. You need a separate receiver on a separate channel for each one; they're very limited in distance (especially when you put walls in the way), and they're not secure.

The only way wireless cameras become at all reliable or secure is using IP cameras over WiFi.

Plus, "wireless" cameras are never truly wireless: you still have to power them somehow. By the time you run power to them, since the toughest part is usually the last couple feet punching through the building envelope, you might as well run power and video together all the way.

Most straight-forward method in a residential setup is usually to pull wiring through the attic, poke them through the soffit, and mount the cameras there. Easiest thing is generally to use UTP cable (Cat3, 5e, or 6) with video baluns, to run video and power all over a single cable - it's cheaper than separate coax and power, and a lot easier to work with.