Is there an appriciable difference between big name tools?

It's too bad that the young guns need so manytools when they are just starting in the trade. Borrowing tools from the veterans only works a time or two before they need to buy their own. Many young guys have bought cheap tools just to get by but end up buying another set of quality tools later. Something that will last and you can get service on. I always tried to help the young guys manage their tool dollars. They can't buy it all at once (or can't afford to pay for it) . It's easy to get overwhelmed in the tool truck when you see all that you need or want. "what do you borrow from the other guys" I would often ask. The dollars you spend for a tool will be well spent there. You must get the "needs" covered first. Then you can work on the "wants" on your list.
At 62 Y.O., I still use that same philosophy, If I feel like it's a tool I need and will use in the future, I'll buy it. If not I'll rent it or borrow it. Especially if the likely hood of needing it in the future is not likely.