I'd say: DO! If you are trying to learn how to do these sorts of things but as with everything Pi, don't get your hopes up about speed.
Once you are comfortable you can move on to a better dedicated setup.
Once you are comfortable you can move on to a better dedicated setup.
It's like building a model airplane. You don't do it because you need to fly across the country tomorrow in under 6 hours with drink service and a nap, you do it because you can and it's fun.
The audience for Pi are youngsters who want to play. They don't have an office full of legacy x86, PPC, Mips hardware to play around with.
A tutorial like this is a great place for a youngster to start playing around.