"Need"? ..... hmm, interesting question, 'Do I "need" a new pipe?'.
Once I acquired a full rotation of pipes, "need" was never a consideration.
It's good practice to rest a briar so 7 pipes is sufficient for one who smokes daily.
Except for undamaged metal pipes that are very easy to 'restore' [All a metal pipe needs is a good clean] I learnt the hard way to only buy lightly used estate [used] pipes that had been professionally cleaned.
Most of my estate buys came from two German ebay sellers that sell estates and new pipes. [I'll dig up their names if you're interested. One also has a website where you can pick up NOS pipes at reasonable cost
www.markenpipes.com ]
Missouri Meerschaum cobs are rather good smokers. I've got three MM cobs that are in my regular rotation.
A new cob gives off a vegetal taste for the first 2-3 bowls but once 'broken in' they are fine.
We are all different. Some smokers, like myself, are susceptible to tongue bite.
One of my favourite blends for example, MacBaren Plumcake, bites me hard in a briar or cob but I found that it doesn't bite when I use a charcoal filter or when smoked in an old meerschaum lined Heibe.
You might like to try MacBaren Virginia #1. A slightly sweet mild Virginia that is rather tasty and does not bite.
Learning to get the best from a pipe takes time. With a little patience and perseverance the experience gets better and better.
Like most I struggled with correct packing at first but now I pack a bowl without conscious effort.
Don't be shy to ask questions. When I first found pipe forums I must have asked some really dumb questions yet they were answered respectfully and patiently.
Good luck and welcome to the forum.