Hello - happy new year!
I use the Neal's Yard Remedies oils, and have done for about 20 years (long before I even qualified as an aromatherapist!). Like most other companies they also do a practitioner's discount which you need to apply for - and this gives a discount on the EOs plus most of their other products too. They probably do work out slightly more expensive than other brands/companies, but not much more. And I feel that you are def getting better quality for your money.
Reason I like their oils is that they do mostly organic oils (certified by the soil association) which I personally prefer, and the quality is always fantastic. I've compared my EOs from Neal's yard with other brands and have used other brands when I've not been able to get to neal's yard and the quality is never quite as good from other places. Sadly, neal's yard have reduced their range of EOs as it used to be much better and have all the less easy to find oils - but the ones they do have are brilliant and I wouldn't use any other now.
There are lots of other great EO companies out there, and it's almost down to personal preference and also trial and error. Often you will find you have oils in your box from about 4 different companies as one does a better orange than another etc.