Half of my hens were ftgh but the most I have paid is £50 for a trio (Scots Dumpies). I saw a trio of Scots Dumpy bantams go for £300 at a recent auction

. But the latest way to make fellow chicken owners really jealous is to go for a new colour of Orpington that was developed last year and there's only about 2 or 3 people in the country with this - CHOCOLATE!! Fertile eggs are selling on ebay atm for upwards of £80 for 6 - and for that, you aaren't guaranteed a) they'll hatch and b) that even half of them will be chocolate, because of the nature of the genes.
But aye, go get standard brown POL hens for £3 each, or rehome battery hens @1