It can handle huge amounts of its own trees without problem and with native terrains/trees you can easily go over 100 million polys.. only, because of large amount of foliage to draw on screen, it is an absolute necessity in such cases to use layers and hide them once they are finished).. (not from render but from seeing them in ortho/main views) Of course, next release will certainly have more powerful features and you might want to compute the different advantages sidegrades/upgrades.. also the ratio price/power.. might be decisive in your choice