TheKingElessar may have a point if you are talking about the most competitive lists out there, like say GK purifier spam. I can't imagine being competitive with that army at the same points level. Repentia will be cut down due to the power weapons and cleansing flame, so aren't going to be as effective (due to no FNP vs power weapons). DCA should still do well, but 1 unit can't carry the whole army, unless you are playing only a 350 point game or something.
Wife: "How much do you have invested in these ... miniatures?"
Me: "I don't think invested is the right word."