I'm reasonably certain that 24 oxen is, well, a lot of cow. What can we learn from this? First and foremost, that Elisha's family or clan was well-off.
The entire Elisha cycle is a set of legendary stories with strong echoes in folklore all-over. (My book on the subject is not with me today, or I'd give the reference. Expect an edit in a week when I get home.) So you should expect to see details that are part of the art of story-telling. Some might even go so far as to say, 'tall tales.'
The immediate implication of all that beef is that it's a big deal for Elisha to throw all this over in favor of following Eliyahu. He is not some poor person with little to lose. (Though he is also not rich enough to get someone else to do his plowing for him.) It also suggests that he is a skillful, powerful, man. Controlling that much ambulatory hamburger is not an easy job.