No I don't think greed gets in the way of the hobby, at least for me it doesn't. In my view, it's just an activity to get me out of the house, and hopefully with a little reward at the end of the day to show for my efforts.
It is a good thing to have a detecting partner to sound off on, and to compare finds and settings/detecting methods. I think it is a bit shallow if you were to have the sort of attitude that areas like the beach can "belong" to yourself, or have your feathers ruffled if your detecting buddy had a good find metres from where you were detecting - you should be happy for them, and maybe even learn something in the process. Compare it to say fishing, you aren't going to diss your buddy if he pulls out a nice snapper metres from where you have cast your line, so once again, it is all about having some fun.
I had a few signals last night that were mid tones - low conductivity & low ferrous. Some were pull tabs, whilst many others were 5c coins, which is a good thing since gold will fall into that range. The other interesting signal is high ferrous/high conductivity on one swing, and low ferrous/high conductivity on the other swing of the coil. Some of these have been masked coins, some iron, but since then I have learnt that they can also be deeper coins that are simply too deep to get an accurate vdi on, so will be chasing those in future.
Last night I was wearing thermal pants, jeans, thermal top, t-shirt, jumper, raincoat, gloves and a beany. Any more than that and I would start resembling the michelin man, and will have trouble bending over.