I have to agree that if you go to the sale rack at anthropologie online or in-store, the tops can be more reasonable, with a good amount of selection between 9.99 and 39.99
And like others have said, Forever21 has some similar styles sometimes, but even so, some of the lines within anthropologie (the ones that are exclusive to anthro) are influenced by other major lines as well. So it's sort of a trickle down effect anyway, for some things.
But another site similar to shopruche and modcloth, is lulus.com