I thought about this.
I like Tmax100, 400, and Tri-X. I use all of them on 35mm and 120 and that's all I use at the moment. I *could* buy dozens of each and keep them but I decided to buy just enough for my current needs and buy what's available when I need to replenish my supply. There's no telling if Kodak products will be available but Fuji is resuming some of their B&W line and Ilford is always an option. I kind of prefer using currently available and fresh product, and buy from current manufacturer.
Personal decision, of course. If you like Tri-X so much, why not? 100 isn't all that much anyway.