My current board is the inflatable Naish One, a pretty fantastic board. Great for cruising and racing alike. The board costs $1300. The high quality and high performance for an iSUP makes it totally worth it.
My spare board is a Tower iSUP. The board will set you back about $700. Its durable and very stable, but not suitable for racing.
I do own a short wetsuit for the colder water temp of Lake Michigan.
I like the the manually Inflatable PFD as it doesn’t hinder any movements. By law its required to have them on the board.