You don't have to buy all of them. Buy what you think you need as you need it. Mastering the Miter Saw, Base and Casing, and Crown would be a good place to start. $150 for all three. The cost of learning the information contained within the hard way is much more expensive. If you are looking for free check out This is Carpentry or use the search function at the JLC Forum. There is a massive amount of valuable info there.
I don't consider using a saw other than a Kapex "making due". There are any number of professional grade saws on the market that yield excellent results. I can swipe my card and buy the saw but don't because I can get reliably accurate results from every saw I own none of which owe me a thing. The only feature of the Kapex that could potentially make me more money would be the dust collection but there are any number of ways to collect and contain dust on the occasions that I need better than what I can get from using a Midi vac, a drop cloth, and maybe a Chopshop Hood.
I don't consider using a saw other than a Kapex "making due". There are any number of professional grade saws on the market that yield excellent results. I can swipe my card and buy the saw but don't because I can get reliably accurate results from every saw I own none of which owe me a thing. The only feature of the Kapex that could potentially make me more money would be the dust collection but there are any number of ways to collect and contain dust on the occasions that I need better than what I can get from using a Midi vac, a drop cloth, and maybe a Chopshop Hood.