Re: First Vise
I don't have any of those vises, but thought I'd comment on the rotary question. You don't need one. But if you have the cash to spend to buy one then might as well. Down the road you may wish you had rotary and then buy another vise. But if you'd have to make some sacrifices to afford it it's certainly not necessary.
Also, it looked like one or two of those vises might come without a tabletop base. I'd recommend getting one with a base or buying a base for it. It's very nice to have.