No you have SketchUp Make for 0$ !
Pro is only for "Pro use" who need to program Dynamic Components, Layouts for architects and some function like Boolean*...;)
SketchUp Make is not licensed for commercial work.
With "Make" you can use Dynamic Components!
And of course 99% of Plugins (maybe more 2 000 plugins are existing for anything! )
https://www.sketchup.com/download?sketchup=make

(when you downoad "Make" you have "Pro" version functions for a month then becomes "Make" !

As we say :Moi is the "SketchUp of the Nurbs" so you can imagine how easy it is! :)

You can even use SketchUp as Subdivision with 2 "Plugins"
Artisan (39$) https://artisan4sketchup.com/
or SUbD (20$) http://evilsoftwareempire.com/subd

Else SKetchUp is the program who have the more Render engines dedicated! :)
The more easy and funny is this free one!
http://getvisualizer.com/ (till SketchUp 2016)
else this very free cool one (maxi 1920 *1080) SimLab Composer Light (as it's a Standalone you can use it for Moi! )
: http://www.simlab-soft.com/3d-products/simlab-composer-freelicensee.php#light
etc...

* Booleans are now existing for "Make" for 20 $ ;) http://mindsightstudios.com/booltools-2/


PS You can also use SketchUp for free "Online" but there is no plugin! (not recommanded for that you want but funny!
and very pedagogic for learn & use only native tools! :)
https://www.sketchup.com/products/my-sketchup

My little try(s) of my SketchUp :)