Man oh man... please don't mistake the Internet to be an anonomous place.
Don't use pirated software. It is illegal, immoral, and wrong. I don't care how little you use it. It is stealing, plain and simple.
Using educational and student versions for commercial use is just as illegal and knowingly doing so is immoral.
You don't like the $700 price tag? Don't use the software. There are more economic software packages out there. Come on now.
Does Adobe have something that you
need to run your business? Then it is worth the cost.
Would you knowingly use a stolen truck to deliver and install a
sign?
How about your tools? Would you steal someone's tools in order to get an order out the door? Even if you only did it once in a while?
I doubt it. But it is the same thing as using pirated software.
P.S. I am sorry if I sound harsh and I mean nothing personally. I am sure you are a great person. I just don't understand how people can justify stealing software. It may not seem like a horrible crime, but it is stealing / theft. I am sure that you don't steal anything else in order to run your business, so why steal software?