I'm not going to restrict my jump range to 50LY arbitrarily, but 70LY would absolutely be worse for me on most trips because I'd either have to fly a ship I don't like spending extended time in or compromise on too much other functionality. Getting where I'm going a couple of hours quicker wouldn't make up for that.Not saying that one cannot explore in a 50ly ship,. just that it can be better to do it in a 70ly one since it has only perks.
Different people will certainly put that trade-off at different distances; equally the argument that one can explore in a 70 LY ship but a 90 LY one has only perks is more obviously disputable, and I think the same applies to 50/70.