it certainly is "horses for courses or hens for ........ pens ?) . As I stated first its all been trial and error to arrive at a point where we feel that our lovely flock of hens suits us and are at least capable of paying for their keep and as egg producers its hybrids everytime. we've had pure breds because we wanted them for their beautiful plumage, or because we wanted to support traditional breeds, so over many years we have had a range of marans, welsummers, sussex varieties, pekins, jersey giants, brahmas and cochins and a whole range of RIR based hybrids such as warrens, goldlines, blue haze, and our absolute favourite Black rocks.
in our experience the purer breeds are more expensive to start with, look beautiful, lay interesting coloured eggs at times, but are hugely prone to unwelcome broodiness and live forever resulting in us either having to feed them for years for no return, or as we did earlier this year have a mass cull which we don't enjoy.
hybrids are cheaper to start with, can spend long periods looking ropy and seem to take an age to recover from the moult but lay loads, are much easier to handle, much tamer and don't live forever- tending to cark it with no warning ( hopefully after they've paid back themselves). so I guess you pays your money and takes your chance.