I hear you. I was tempted to run the cables for the Hikvisions higher up on the wall to have more of a "seamless" effect, but I pumped the brakes on that idea. In most cases (certainly in this case), the logical location for indoor cameras does not match the logical location for wall mounted TVs, so it's not like I could re-use those ports for hard wired HTPC/Roku/whatever use in the future. Instead I just made some perfect-length patch cables and utilized those fancy double-sided-tape-plastic-wire-tie-clip-thing-a-ma-bobs to keep the patch cable neat and tidy as it traveled down the wall to the new wall port.
Something I did to make this more do-able with the least amount of damage is I worked with the blue plastic electrical boxes. I pulled the nails out, as they come pre-installed and are positioned on the top and bottom (but outside) of the box itself. Pulled them, shaved the tabs off, and after finding which side of the stud the existing electrical box was on, drilled a hole on the opposite side. Slid the box in to its appropriate depth, screwed it to the stud from the inside, bazinga. Approximately zero wall plates needed any form of drywall patching. Likewise, once the rectangle hole is cut in the drywall, (if need be) you can typically get one of those long flexible bits in there to drill through the 2x4 framing for the line pull.
I have to say, that flexible bit I got was the best 30 dollars I ever spent. Even if I never use it again, oh my gosh... well worth it.
It's a good feeling knowing your house is wired up for not only the current CCTV load, but the future load that the bedrooms may bring. I planned ahead and installed pull lines (where necessary) in the event Cat19e comes out someday and I want to upgrade.
These Hikvisions are going to come in stupid handy too. Having them be POE ready *and* wireless... gah. Brilliant. Someday when they are no longer needed as full time kiddo cameras, but say we go on vacation somewhere, I can plop one in place (anywhere, you name it) and let it murder my otherwise unused wifi with us being vacant. For those nuance use-case-scenarios, the wifi will be mega handy there. For the day-to-day use right now, I looove me some wired internets.