Disagree on not buying cordless. I have never had a corded model, but my intuition tells me that in the tight spaces this tool is often used that the cord would get in the way .
I have never had a battery problem because I have 3 tools that use the same battery.
Can't imagine a job where the cord would be a problem.
With the ability to put the blades on in many positions, even if you were, lets say cutting a stud off, and the next stud would not allow a corded one to fit, just angle the blade.
I would like to hear if anyone has not been able to make a cut, because of the cord.
Maybe you should buy the shortest one out there.
Cordless would come in real handy if you used it in a trade where you had to use it, in attic's, crawl spaces, etc. And then I wouldn't buy the cheapest HF one, just because it was an inch shorter.
One case, where, I don't think, size matters.