My recommendation is to buy tools as you need them. That being said, stock up on the basics (quality Phillips and flat head screw drivers in all the sizes, pliers, tweezers, a stanley knife, you name it) and maybe a decent soldering station with all of the accoutrements.
In my experience, quality tools are almost always worth the extra cost. When it comes to basic hand tools, I would strongly recommend buying the best you can afford, because you’re going to use them all the time.
When it comes to more specialized tools like soldering equipment, it really depends on how often you are going to use them. If you’re just starting out, a 50 $ soldering kit is going to serve you pretty well. When I got a little more serious about electronics, I bought an 80 $ soldering station which I used for years, until after a couple of bad solder joints on some actual contract work caused by insufficient temperature control, I said to myself: “Fuck this, I’m buying a JBC”.