I totally agree with doing it yourself. I'm 24 and I have wanted to build a nice machine since I was a Freshman in high school. I'm finally getting around to it. Sure it requires specialized tools, but once you've purchased the tools, and have learned how to use them, you should be set for life.
It's almost the difference between renting a house or buying one. There's pros and cons to both sides. If you are planning on moving to another area sometime soon, maybe you should rent, but if you are planning on staying in the area for several years, maybe you should buy...buying the tools/learning the skills will give you the power to do other projects in the future.