Advanced trees Vs Amature trees

For our Information Literacy group assignment, our group has decided to chose the subject 'Are Advanced Trees Worth it?'. It is a good topic considering that many councils and urban landscapers are using more advanced trees to create more of an instant garden or landscape. Even though advanced trees look great, and do create this instant garden, not many amateur gardeners would be able to afford advanced trees because they are so expensive.
At work at the advanced trees nursery, i asked one of the guys the same question, 'Are advanced trees worth it?' and what benefits that buying advanced trees are. The topic is very subjective, because it depends largely on the quality of the plant, large or small to determine whether the plant is worth buying in the first place. For an advanced tree to be worth buying, it needs to be well maintained, with good roots, good caliper, good structure and needs to be in good proportion. The plant needs to be able to grow roots quick enough to anchor itself into where it is planted, to be able to survive the elements such as wind. For advanced trees to be able to do this, they must not be affected by root circling or j roots, because these will essentially cause the roots to strangle the plant, and the plant will be unable to grow roots outwards to support itself, instead the roots will continue to grow around in circles as it had been in the pot. If the advanced tree has been managed correctly, it will be able to grow roots quickly and be able to begin to grow in its new environment very quickly.
Buying small trees there are financial benefits, yet the trees need to be managed correctly to be able to grow in shape and correctly. If young trees and left to grow randomly without pruning, they can quickly become 'leggy' and grow into strange shapes and can become lopsided which could cause the plant to drop branches, and not grow into a healthy plant and wont live up to its potential.
If you are knowledgeable and willing to maintain the small plants you buy, than small trees are well worth it because many species generally do grow quickly. If you want an instant garden with not much maintenance than high quality advanced trees are the way to go.