Without dissing Dermalogica too much as I have used them personally over the years, why is it the first one anyone thinks about!
I can only suggest that you have a real good research, there are lots of threads on here regarding products, from Eve Taylor, Decleor, Germaine de cappacino, moor spa, and so and so on.......
What I did, is checked the threads on here, then went to company websites, rang them and got information, then gradually made my mind up.
You need to see what you want from the product, is it pampering, or result drive, do you need 2 different brands, do you want organic and again so and so on.
What has been said is true you do have to spend a bit more and not be cheap. I have invested more in a microdermabrasion machine and my facial peel range, I also use Eve Taylor for the pampering traditional facial, although I like the products. I have probably spent about £3000 but I only buy where I don't need to have min order etc and I do not have a loan, consequently I have to date not taken a salary of sorts yet.
I hope this helps and good luck, it will work out if you spend the time researching.