I was stressing about the space issue also until I found a solution. Copy EVERYTHING to the SD card and just leave 1 blank space for VC/WiiWare games and when you're in the mood to play a game just copy it to the Wii memory, but don't delete it from the SD card. Then when you're done delete it and you're ready to copy the next game.
Sure it takes a bout a minute to do, but if you think about it, turning off the SNES, taking out Super Mario World, putting in Donkey Kong Country and turning the SNES back on takes about the same amount of time there is nothing to complain about.
I think people who make it out to be a big deal are just exaggerating because I found doing this way not only saves time but works effortlessly. You don't even have to leave one space open you can fill up the system memory with your 15 or so favorites and leave a couple black spaces near the end to do the swapping out. Just be sure to leave everything on the SD card and it's not a big deal.
Copying back and forth takes forever and a day but once it's all on the SD card then swapping games is a lot easier and less cumbersome than swapping SNES and moving over to Genesis then going to N64 and back to SNES. Before the Wii whatever system I had hooked up that was what got played.
AS for the topic at hand...
I am sorta with UB, once a game is done it's done, having the choice to download extra content is fair and reasonable but I am opposed to DLC on principal because it does allow for developers to put out a Demo of a game and charge extra for the rest. Then again is it really any different than Shareware? I guess I will take a wait and see approach.
Wait till the game comes out and see how much you actually get for the introductory price. If it's less than what you get from a demo, then by all means bitch and moan, if its at least as much as you'd get from a shareware title (even though I don't think anyone still does that) well then it's at least enough to justify the introductory price and then you can pick and chose what to download at your leisure.