Its very easy to be seduced by free CAD software, and I must admit it will open up a whole new world for you, being able to lay out high quality boards at home.
Once you learn to use one particular free starter kit, you are pretty much locked into that, unless you later decide to ditch the whole thing , and start again almost completely from scratch learning something completely different.
All the free stuff sets definite limits on what you are able to do, and one day you discover that your current project is just too big for the free software version you have, and you need to spend some serious money for an "upgrade".
There seem to be two ways these limits are set, either physical board size, or the number of components or nodes of the design.
If you are into microcontoller type projects using surface mount parts, the board size is not usually going to be huge, so being limited that way may not be a serious problem.
On the other hand, if power electronics are your main interest, with larger through hole components , inverters, or solar controllers, etc... the board size is likely going to be much larger, but the number of components or nodes probably not that great.
So check what sets the final limits of what you can lay out with your favorite free CAD software version.
Read the fine print !!
Also check the cost of upgrades. You might think now that you will never upgrade, but a year from now that may change, once you really start to get into it.