Need? Probably not. But, if you have the cash to spare, find a good deal and want one, why not? They don't eat anything and mostly retain their value. I had a 301 first and I took it halfway across the country to retreat even though I had the FW. Why? Because I felt it was less fragile and would travel better. I sew on both of those and my modern machines. Right now I keep my FW set up to do my BOM on. I have room.
I really enjoy my older machines because they are so quiet and I am sound sensitive frequently. My husband likes them for the same reason - they don't interfere with the TV.
Good luck in you decision and search.
Mary