I think the low cost of springers compared to all the trouble new people to the sport see the pcp as and the price. Once people get into the sport and realise the accuracy of the pcp compared to the springer with little real practice a lot of people then change and are able to hit a lot more targets then they once could. When they get bored of the simplicity of the pcp shooting they try and improve there skills as a shooter as a hole they go back to spring shooting.
Well that's how iv gone anyway, I still have my dads bsa r10 in .177 for when I need pin point accuracy and kill everytime b