The Nintendo Channel worked on me. I was drawn in by its video and description of My Life as a King, and after looking up a few generally-favorable reviews, cashed in some Nintendo points for this WiiWare title.
The first four-to-six hours were great by my estimation: I was introduced to the world and began building my town and sending out adventurers to explore nearby dungeons. The story was fairly tepid but new buildings were quickly and steadily introduced to my town, keeping my interest and encouraging me to keep playing just one more game-day to gain the next unlock.
Before long my town was bustling and I had a crowd of (all basically identical) skilled adventurers lining up to do my bidding. The story kept grinding on stupidly but was overall inoffensive. I acquired all the building types (including the DLC ones I paid for) and integrated them into my little city.
And then.. the game fell flat. I'd exhausted the mechanical payout curve by unlocking every building type before the story ended, so that my motivation to advance another game-day went from "discover what new kind of building you'll get next" to "build a second instance of that same building you already have."
My two major critique points would be these:
I'm not sure how far through the campaign I made it, but I'd guess about halfway. I have a mild urge to pick it back up, but it feels like there's nothing left to discover, and the urge passes. I don't understand the predilection for mechanical frontloading that so many game designers have, but at this point I feel like I've seen all My Life as a King has to offer. It plays into the self-fulfilling prophecy wherein traditional wisdom states that most players don't complete games, so we should put all our content up front, which makes players unmotivated to actually complete our games... and whoops, here we are.
It was a very nice first half, though!