Tactical knives (much like custom knives) has become a category or marketing term as opposed to a knife that is literally a "tactical" knife.
In the Military the word "tactical" refers to a type of planning where the "rubber meets the road", which is where most of these knives would in theory be used.
So thehe term tactical is based more on their "look" and materials used. Then perhaps what their final purpose actually is.
Many makers have tried to jump on the band wagon and claim their knives are "tactical knives". Tactical knives do not have wood handles, nor do they have mirror finished blades. Wood handles and mirror blades can be found on using knives (Hunters, Skinners, Bowies) and even in the presentation category.
Tactical knvies have had a huge level of popularity for the last 7 years. I would go so far as to say they are responsible for the majority of knife sales over that same time frame.
They brought custom knives out of a downward spiral that was becoming a trend in the early 90's. Predominately, these knives were tactical folders. However, in the last 18 months tactical fixed blades are starting to gain in popularity (again)as well. I have to disagree with Knifenerd on the trend being to smaller fixed blades. Neck type knives have taken a big dip in popularity and today BIGGER is BETTER! However, folders were headed smaller for a while and now that seems to be turning bigger again.
They gained in popularity due in large part to their affordability and quality. Coupled with these knives and their makers took over the role of the innovators when it came to new materials being used as well as new locks and opening mechanisms.
Makers like Bob Terzuola, Pat Crawford,Kit Carson,Walter Brend, Jimmy Lile, Jim Hammond, Butch Vallotton, Phil Hartsfield, Bill Luckett, Bob Lum and Gil Hibben started it.
Then Allen Elishewitz, Ernie Emerson, RJ Martin, Greg Lightfoot, Rob Simonich, Ken Onion, David Broadwell, Larry Chew, James Piorek, Brian Tighe and Darrel Ralph.
Today we see the next generation starting to emerge. Larry Davidson, Mike Snody, Brad Duncan, Trace Rinaldi, Tom Mayo (he makes some really nice fighters as well), Jerry Hossom, Ryan Wilson and Steve Ryan to name a few.
I know there are makers I missed, it was not intentional.
Jerry, as a martial artist, I can tell you that no matter what the weapon you will drop it numerous times while learning how to use it.
So I am curious as to why someone would want a knife handled in a material that has a good chance of breaking or cracking during training? Also, I understand what you are saying about the "mirror" blade in sunlight. However, most "real world" knife fights don't last long enough for you to maneuver your opponent and your blade in order utilize the sun to your advantage. If your that good, it's best to employ a trap or block and elminate the problem.
Tactical knives are here to stay. There are paramters that should be adheared to (after all you don't put micarta on a presentation knife). This does not mean that makers and collectors won't make and buy what they like.
Tactical knives have that base appeal to those who buy them. Many have the newest innovations, latest materials, made by some of the custom knife super stars of today, they are affordable and best of all can be used! Really used!
Keith, Jerry does in fact make a tactical type knife, called the Military, as does Joe Flourny. The only problem is the leather sheath. If you are on Jump Status or in the 101st, you cannot have a leather sheath. It may be that way in most infantry units now as well. To many guys were jumping out of planes and rapelling out of helicopters only to hit the ground, roll and and get stabbed by their own knives. But Kenny Rowe who makes a lot of leather sheaths for the ABS guys, can line you sheath with Kydex upon request.
Also, rumor has it that a custom knife entreprenur located in the South East has put together a project with 5 ABS Master Smiths to make a very limited edition group of Tactical Knives. Utilizing Stock Removal techniques, stainless steel guards, black micarta, kydex lined coruda nylon sheaths, and S30V steel.
So TAH, if you like Tacticals then buy some (note the web site address below)

. You haven't missed the boat yet.