They're not intended as stand alone wackys, just sketches of wacky related characters. As I've mentioned in other threads, while they are cool to look at, I don't really understand collecting them either, accept in an impulsive "buy/trade for whatever strikes you as cool" kind of way.
I think that was all they were intended to be. But what I like is that there was a bit of inventive collector-ness that came about.
What surprised me, is that collectors came up with ways to collect these sketches. I couldn't have come up with a way to collect sketches, but other collectors did.
With Old School, it became about collecting one of each character in sketch form, or one sketch from each artist on the series. Similarly, on the postcard sets, some collectors gave themselves the goal of trying to get one sketch from each artist, and all sorts of other arbitrary goals.
And that's kind of awesome, isn't it? I mean, as much as we can collect a set of stickers, many of us come up with all sorts of other goals that, while arbitrary, provide some fun stuff for us.
People collect gum, different colored backs (which have nothing to do with the parodies or originally-intended sets), wrapper fold-variations, etc. '
So, we've all managed to collect aspects of Wackys that were never intended to begin with. You may not want to take part, but it's just the same thing that we've been doing all along.
Heck, no one ever thought that the wrappers were going to be the thing that people collected, but a LOT of collectors collect Wacky Pack series wrappers, too.
I realize that you can't put sketches into some kind of mathematically-defined "set", but I quite enjoy that this is something collectors came up with on their own. They weren't told to collect sets of artists or character sketches - they come up with what to collect on their own.