I suggest look for deals on used tools. Pay attention to the amount of time you take to find the deals. As you acquire more tools you spend more time, finding deals on stuff you do not have. Once you find you wasting time, then you need to find yourself a good driver. This very important. Become a regular customer, get the monthly flier. Make deals with the driver, take advantage of buy one get one deals.
Once I had a good driver, he pretty much would always a buy one get one deal set aside for me, when they came up. Or he would call me to ask if I wanted the deal, if he was running low on something. Eventually we would talk abou some upcoming things, before he would buy his tools from corporate. I also gave him a list of what I was looking for, so when a deal or a discount came up I would have an opportunity to get the deal.
After a while it become a better value for my time to get the buy on get one deals. From my driver. Instead of the used or online route searching route, although it was fun to chase down the deals. I still look for those deals sometimes, just for fun. I paid full retail only few times. Look for the deals, do not be scared by the retail prices, they are not set in stone. It is very important to find a dealer that you can work with, that is the most important thing with snap-on. Otherwise just keep hunting for the deals, the tools are really good.
Keep reading on garage journal, you will learn a great deal about tools, and tool deals. There is a great community here.