Indeed, I remember after the first gameplay kit a lot of people had great ideas for other gameplay items that would probably never be chosen to be included into a pack but could be made into a kit. Like different types of kitchen items, or stuff for the garden like lawnmowers...
Now to be fair (I often try these days to not just be mr negative) I have been impressed by the quality of several kits that they have released. Even if there are less items in a kit than in a stuff pack that doesn't mean that they put less effort into them, a lot of kits are actually really nicely designed.
But I don't think kits are a good replacement for gameplay... so I agree that they should try and deliver an equal amount of gameplay, cas and b/b if they are going to focus on delivering monthly content in the form of updates, SDX and kits as they seem to do more of now.