We, too, are people who would prefer not making ADR's. Unfortunately, we always have to go during Fall Break for our schools, and that is always timed with the tail end of
free dining. We don't always get free dining, but even if not, the free dining people call as soon as that ADR window opens up for them, and book all the ADR's, and in many cases, never even show up when the actual time comes, because there is absolutely no disincentive for people not to book restaurants at which they never arrive.
So I feel the pressure to get ADR's, though without the free dining package I would not. Still, we're almost always able to just walk up to most TS places we like and get a table within 30-45 minutes, even if it was a place "booked solid for the week" when we called 3 months before.
It is a badly flawed system and it is abused, which surprises me, given how well thought out and effective many of Disney's other uses of technology are (fastpass comes to mind).
Even if we go during free dining this year, it is most likely that we'll make an ADR for Hoop De Doo (this has a credit card hold and I've never not been able to get this), and maybe one or two other dinners throughout the week at "must eat" restaurants. Other than that we'll just walk up at whatever park we're in and hope for the best (more often than not this works well for us), or find a handy CS place.