I agree with you medeek. But Sketchup needs some (a lot of) finetuning. Especially in Layout and Sketchup's integration in Standard workflows.
Sketchup is easy in modelling, not as such in technical presentations. We are capable of creating them, but we are not fast.
So producing what matters is where Sketchup shines, the final product, is not easy to achieve.
It's this gap that plugins cannot overcome and Trimble hasn't yet been able to deal with. It will get there I believe and when it does, then Sketchup will be a true leader, and it will coincide with your plugins maturity so I think you're in the right track.