Are Custodians still appealing nowadays?

Custodians miniatures were spotted again on EB, but are they still interesting after all those years?

These miniatures are definitely not so new sculpts, but they are of very high quality (IMO) and strongly departing from established aesthetics of power-armored futuristic soldier in so-called heroic scale. The latter gives a value for me, but also produce a problem, how to integrate them in my collection of space marines, heavily biased toward GW production. The weighting factor for purchase decision is their price of 60 USD per 6 dudes...