Although funds are low at the moment so I have to concentrate on sets, I do also like to collect any Lego merchandise. I've bought other Lego stationary but not the Aquaraiders set as yet and some of the other "play" swords/water-blasters for my nephews. They aren't overly interested in Lego as such but I do like to show them how the dressing-up stuff can be related to the minifigs and then get them playing with the actual Lego too.
Yes, Lego should be concentrating on increasing its quality issues and giving us great sets, but this is an ever changing marketplace and congrats to TLG for having the wisdom to diversify slightly while still tieing everything back to Lego themes.
Worst? Certainly not. But that's because I'm also trying to teach myself how to draw Manga and have recently placed an order for this set as it combines my 2 hobbies (though I guess I won't be using it as an actual tutorial, but just as an item of both hobbies)