I have just too many attachments that have the lift pins spaced differently or the attachment is not quick hitch compatable. I went with Pat's system. I think there are others here that would say they like their quick hitch. I think if you have a quick hitch before you start buying attachments, then make sure that they are quick hitch compatable, or can easily be altered, you will be OK. I myself like to buy used when I can, and the attachment doesn't always meet the standard of a quick hitch.
Oh, I see you are a welder by trade. So altering attachments to fit probably won't be an issue for you. Just something to keep in mind before buying I guess.