Another argument FOR buying the RCBS stuff...If you ever decided you wanted to sell your reloading stuff, for whatever reason it will resale in a heartbeat, where Lee stuff might not move so quick.
I've got a mix of stuff I picked up here and there over the years. Mostly RCBS, but mixed in with Lee, Lyman, Redding, etc. IME every component I own and use has it's own set of quirks. There are things about each of them I like and dislike. For example, my Uniflow powder measure (RCBS) stinks dropping long grain powders. It cuts the grains and makes throwing consistent charges almost impossible. My little cheap Lee powder measure on the other hand, throws long grain charges very consistently. I still trickle up to weight either way though. The Lee hand primer uses proprietary shell holders, only good for use in that one tool. The RCBS uses standard shell holders that also work in almost every press made.
I have three presses, a Redding, RCBS, and a Lee (back-up). You can feel the difference between the Redding & RCBS vs the Lee. It just flat out feels better every time you cycle the press. The same can be said for the hand priming tool. Sure either will get the job done. But side by side, you can tell there IS a difference in quality.
Opinions will vary, as you are seeing. I recommend the RCBS Master Kit to people who want to start reloading. It's about the most comprehensive kit available for the least cost, that will last so long your grandkids will be loading ammo on it and handing it down to their kids. You really only need to add dies, shellholders, brass, consumables, and a good set of dial calipers to this kit and you're set for many years of reloading without concerns of upgrading.
I like Redding dies too btw.
Jay