I don't care either way. It doesn't bother me, but it doesn't thrill me either. Change it if YOU want to change it. I kind of like mine, and this is the only one I've used here, and that's for several years now, so I am not planning on changing it anytime soon. It kind of amuses me. I change my desktop theme pix packs every few weeks though, and sometimes more often. That gives me the chance to have more variety in pix to look at--a sort of desktop redecorating. 
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau