Most of my tools are craftsman, I started out with one of the huge socket kits when it was on for half price. I also have a fairly inexpensive craftsman box which has been solid so far. Craftsman is great because they are so much cheaper and they seem to rotate the sales, so something is always half price. Also, if I break something they always replace it, no questions asked, no paperwork or receipt needed. Even if I've used a chrome socket for impact use.
Maybe 20% of my tools are Mac, which I get off the Mac truck. I usually buy more "special" tools, or what they have on sale. They usually only have one or two really smoking deals per month. I have a couple of grinders, a 1/4 air ratchet, my main multimeter, etc from Mac. I won't buy craftsman air tools because they are not as smooth and powerful as Mac and others. Also I bought one Mac 7mm hex socket which I broke like 6 times with Craftsman.
Other companies are good also, there is a very good tool store in my area which sells lots of no-name brands for reasonable prices, like hammers, wire brushes, that sort of thing. I also have Chicago Pneumatic 1/2 and 3/8 impact wrenches, which are nice and bulletproof, yet cheaper than Mac.
The point is, don't buy everything from one company, in this day and age you do not have to get Snap-on or Mac for quality, and you don't have to take out a huge loan. I bought all my tools progressively, from paycheck to paycheck.