Halo 4 Pricing on Steam

As a long time fan of Halo,I bought all games in the MCC Pc up to Halo 4..They were usually 9.99 (euro),except for ODST which was 4.99(euro)

So,Up until now,I had paid 45 euro for the MCC PC,and had Halo 4 been priced the same,I would have paid 55 euro,whereas anyone buying the complete MCC,would only need to have paid 39.99 euro..

This I can accept...because,I am spreading out my payment..

What I cannot accept,is that Halo 4 on it's own is not priced at 10 euros...it on it's own is 39.99

Had I bought the full package at 39.99,I would have received all games..

But now,after paying 45 euros already,I am expected to add another 39.99 in order to complete the collection..

This is a low cycnical move IMHO.

Why should the collection cost me 85 euros?

and the next person gets it for 39.99?

Please fix this.

:)