Guys, I did say in my experience the likes of Eagle aren't used commercially. Of course there are a few statistical outliers, but they're very much the exception. Sometimes individual engineers or technicians use their own favourite tool for a little job here and there because it's something they know or have available on their own PCs.
Professional grade tools don't have to be outrageously expensive, though of course the more capable variants are. Personally I use Orcad PCB Designer Standard, which is about £2000 and includes schematic and PCB software with no artificial restrictions on board size, layer count or net list. It was a significant capital investment when I started doing consultancy work, of course, but hardly a crippling one.
Crucially, as well as allowing me to design boards myself, using this software I can also exchange files with customers and design bureaux who use variants with five or even six figure price tags. It's all the same tool chain, just different licence files, and that upgrade path is another good reason to use more 'grown-up' software. You can start on the bottom rung of a very tall ladder indeed, rather than climb to the top of a stumpy little one and then have to start all over again if you need to climb higher.