Catego Flea and Tick Control for Cats

Frontline and Advantage II have both been failing to control fleas on my three flea magnets (err, cats): they once worked but now do not kill all the adult fleas and even that limited control disappears after two weeks. Are fleas becoming resistant? I dunno, but for the price you pay for those brands, two weeks of less-than-effective control was frustrating for me and the furballs. Less money to spend on cat snacks they only play with, and cat toys they ignore. Looking for some other solution to throw money at, I came across Catego. The (relatively) low price looked too good to be true, and the silly name and cartoony font didn't inspire confidence, but any port in a storm, amiright? That high tech space-needle applicator tip looked like some serious hardware, though, probably based on some stolen black-project technology. (I think it's cleverly colored hot pink so DARPA won't recognize it.) If there were Klingon cats with Klingon fleas, this is the applicator the Klingons would use to exterminate them. Arthropod death beams would shoot out of it somewhere. Anyway, back to my purely Terran cats. I applicated the hell out of my felines, and in fairly short order I started noticing flea bodies in places where the cats liked to lounge, a few pitifully twitching their last amidst the fur my cats generously spread over all horizontal and vertical surfaces. The carnage would have warmed the heart of any Klingon (or DARPA researcher, if they only knew). A couple of days later, I flea-combed the one cat who will let me use grooming devices without yowling loudly enough to send the neighbors frantically dialing 9-1-1, and lo-and-behold, no fleas. (It's unfortunate there aren't more opportunities to say "lo-and-behold".) So this stuff works. As well as Frontline and Advantage II or Multi ever did, at roughly half the price. And more stylishly, I must say. This is now my go-to for fleas; when Amazon gets off their butts and makes one of those DASH-button thingys for Catego, I'm there. Update: WTF is up with the price?!? I paid $39 for my last 6 pack, and now the price is $70!?! Did Martin Shkreli purchase this company?