What I normally do is to purchase a suite off the rack that fits me 85-95%. Then I have some alterations done from my tailor. Kenneth Cole and Cerutti suits are my preference and they are not "too" expensive either. When I want to splash out then I go for Zegna, love their cloth and their off the rack cut is very good.
If you have the right body type, then in my opinion picking off the rack and the doing minor tailoring is the most economical option.
If you have the right body type, then in my opinion picking off the rack and the doing minor tailoring is the most economical option.