A Muse... Why? Why? Why???

Why to companies keep coming out with new stamps that I wanna play with??? A Muse Artstamps just put their new releases on their website and I have to have the following... of course I will want more when I see JulieHRR play with them in Langley in a couple of weeks...

And then there are the Whipper Snapper Designs... I love Anna's new flowers, and they have some cute other stamps as well!! I have never ordered from them directly, but I am thinking that one may be forthcoming. Or perhaps I should just start using the stamps that I already have???