One of the considerations for me when I was deciding whether to leave the company I was working for, and strike out on my own, was the industry reliance, across the board, on CAD software. The software package used by most companies, it seemed (begins with 'A' but I won't mention them here) was a hefty figure to lay out, even for a 12-month subscription. So, I found my way to use various authorised, and unauthorised, CAD packages all with varying