I will throw some of my guesses and some opinions here...
Since the war in Ukraine is not, (at least for now), requiring US Troops direct involvement, I don't see there currently being a big jump in sales for such products. If it looked as if US Soldiers would be sent in, then I believe that some Soldiers expecting to deploy there, would spike the sales of such knives as they and their families would purchase them for their trip abroad into harms way.
So, no, I don't believe there is any current reason why tactical knives would be spiking in sales.
As for prices going up?... Yeah, but I believe some of it only slowly trickled in, and that seems to be because much of the sales were of knives that had been made/purchased at the older prices. As inventories dwindled, and their new more expensive replacements came in to fill those inventories, the prices were adjusted accordingly.
But, yes, prices have gone up.
As for going forward... The continued growing inflation will take a lot of knife enthusiasts out of the game.
Why?... Because as everything goes up around you, and your fixed income or your paycheck shrinks in it's reach, (diminished buying power), folks will tighten their spending habits. If it's not food, car fuel, rent, mortgage, heating/electric/utility bills, personal/family clothing, car maintenance, car payments, phone bills, health bills/insurance, auto insurance, and so much more... then it will likely be cut back or cut out altogether.
As inflation rises, discretionary funds will get tight, or in some cases disappear, and that's when the knife market could see a major shrinking in their sales. Of course it wouldn't just hit knife sales, but pretty much everything that most folks would consider luxury/non essential.
Anyhow... That's my two and a half cents
