Add me as another Sidekick user. The issue with bigger multitools, aside from the cost, is the weight of the full length tools. It adds up with 3 1/2" foldouts vs 2" or less, and the usefulness on most isn't compromised.
Take the time to compare a Wave vs the Sidekick, and the size and weight, plus carry in a pocket clipped, the Sidekick is easier to use. One hand deployment of the main blade is as quick as the typical liner or frame lock, no hassles with a pouch or searching for it in the bottom of a pocket.
Using it just today to install a stereo in my Subaru, the flat phillps driver works well, the needlenose capturing errant screws, the smaller flathead driver/file a good prybar. Sure, a bigger tool or dedicated one is the more optimum choice, but having it on you counts - better than a bag of tools out of the trunk or repeatedly returning to a cabinet located in a secure location further from the parking spot than you like. You got it, right now.
In that regard, the lesser tool can replace something like a Wave or Vic Swisstool simply because it's on you more often, rather than having to remember to strap it on purposefully - which may not adhere to an unspoken dress code at work, or be something you can tolerate on the job. Police officers already have overloaded belts with limited space just the same as soldiers. But the tool is still needed -
With that in mind, it's the size and pocket clip that are now driving progress in multitools. We can stuff just about anything into them, from locking pliers to gutting blades, but having a useful assortment of EDC tools the average guy can use is key - not the useless tacticool stuff like blasting cap crimpers or glass breakers.
Trim out the unnecessary stuff, add lighter weight and portability, and the new multitool comes to market, in direct response to what we've been wanting for a few years now - no pouch, and trimmed down to just what is needed.