Are you asking about the popularity of the bowie knife in recent times (post WW II on), or in Bowie's day?
In Jim Bowie's time, knives were much more in use for fighting than they would be by the end of the Civil War.
Think about it: in the 1830s most pistols were single shot. A smart traveler carried a fighting knife as well and knew how to use it. After that first shot was gone it was your primary, not secondary weapon.
Also, the most common fighting knife was a dagger, something like an Arkansas toothpick.
The Bowie knife was big, had a good point for percing, and was an excellent slicer as well. Plus a guard. If you sharpened the top edge you had an excellent fighting knife.
By the 1850s, sales of revolvers were blooming, and after the Civil War there were a lot of cheap, surplus guns available.
Going to the modern era, in the 1950s Westerns were one of the dominant entertainment formats, in both movies and on that new gadget, television. At one point almost all of the top ten shows were westerns. (I forget exact figures).
Folks here cited the Alamo, but there were few, in any scenes with "the" knife in that. Think instead of the film, The Iron Mistress, a bio pic of Jim Bowie with Alan Ladd and some extensive knife fighting scenes.
Also, there was a tv show, The Adventures of Jim Bowie (1956-1958) which had a fabulous opening, and a few of us old times loved when we were kids.