I tend to disagree with BSM.
If your only going to cut blanks for small items less than 3" thick, then fine buy a bandsaw that will do that.
BUT if like most of us who try and use raw wet timber which you pick up in all shapes and sizes, then I would suggest you get the biggest (within reason) which you can afford.
I get most of my wood supplies as freshly felled logs. I start with the chainsaw to convert it to usable sized pieces, but often I have to re-saw it which is when the height of cut comes in. IME the throat size is less a need for turners, than the height of cut. This is only if you want to re-saw. If you plan on buying blanks ready prepared the whole question of size becomes irrelevant.
I have a 8.25" height of cut bandsaw, and many the time I have wished for a bigger cut as at the minute I am restricted to 8" bowl blanks unless I break out a chainsaw.
I don't think I will buy a bigger bandsaw though, simply because once you go above a 8" height cut the price increases something silly.
You really need to think about what you intend doing as your hobby progresses, then try and purchase what you think will do the job.
