A bit late to the party but I agree with most here... SU isn't innovative anymore.
I fondly remember the anticipation when AtLast software brought v3 with the introduction of curves and v4 with transparent materials, and then eventually, the ruby scripting allowing the writing of plugins. Direct mesh/imagery import from Google Earth was nice plus too.
Nowadays I only use move, rotate, measure and pushpull (and sometimes section planes) as standard tools. All the rest is handled thanks to addon plugins.
So, I think all the tools I use in Sketchup date from v4 or v5. Everything that Google and Trimble brought on the table after that was not really needed. Which is a shame because I feel basically I pay every year for compatibility issues (clients keep updating and send us latest ver Skp models, or latest DWG files for instance)...
For several years now, SU's power is basically its plugins potential.



