I'm with Al, except I'm a cheap Scotsman*. Unless you're collecting, you can, with a touch of patience, find the same clamp at a yard sale for the 50 cents someone's widow(er) is selling the clamp his/her lifemate used for years.
Now, for 50 cents or a dollar, I'd say buy it, even if you never do any welding, because you never know when a clamp will be just what you need.
*Actually, only 1/8 Scots, and possibly not even that. But no one thinks of the English or the Irish as cheap.