We've seen it marginally cheaper than this with codes once or twice before, but frankly £7 is a steal for the Command & Conquer Ultimate Collection. You'll save double that on the RRP and nab yourselves 17 of the best RTS titles to have ever graced our PCs.
My personal favourite has long been Red Alert 2, and I have a soft spot for Renegade (coming to a BFTP post near you very soon). What yours?
Nice spot by jaystan at HUKD.