I believe that the locking portion was made by another vendor, who probably has a patent. I know someone named the company when this was discussed here years ago. I have a bunch of the SK locking extensions, and the chrome portion, the extension, is an SK part. I don't know if they added the locking portion in-house at SK, or at the other vendor.
As far as brick and mortar sales, the only places that sold SK towards the end that I knew of were specialty type tool stores. Home Depot, Napa... aren't going to waste the space to try and sell a $10 socket when there's an import on the hook next to it that sells for $2; because they know that >90% of Americans are going to buy the $2 socket. Same with trying to sell a Malco Eagle Grip to the masses...
Interesting about the locking ext.
Napa here in Canada has the house brand Ultrapro (Carlisle) and now, more recently Craftsman and Milwaukee has appeared. I dont think they ever had SK, even way back.
Back in the day, 25-30ish yrs ago, I remember SK in a few places. The small, independent auto parts and industrial supplies had them, the independent tool truck that came to work had them, SK and Sunex were his main brands. I think thats what they need to do, get back into B&M with a salesman to push them.
But since then, Milwaukee has REALLY stepped up their game in hand tools, let alone all the china brands. Where there once was space for SK, I see it gobbled up by Milwaukee. Milwaukee is everywhere these days, including the independent tool trucks and autoparts, and especially the industrial suppliers all are pushing Milwaukee, over Gray or Proto even. Milwaukee offers the complete package, hand tools and power tools, so great if youre the one making the purchasing decisions for a retailer. Love them or not, Milwaukee has really won the hearts and minds of both retailers and workers in the last 10 years.
I agree that some are price concious to a point, but I dont see SK in that value "homeowner" or non-professional market. . The big issue I see with SK is getting people to give them a chance again. SK was never a big player, like SO, so theyre starting from a disadvantage in name recognition alone, plus theyve been basically out of the game, with no retail presence for 20 yrs here, basically they are an unknown. Just as unknown as Tekton to the general public but at a price 2-3+ times as much, right beside Milwaukee, for about the same money, who has kick *** warranty and has been pushing out product, doing promotions, has the reps on site all the time etc.etc. Its a huge hill for them to climb.
Its an interesting hypothetical discussion. I dont really see an easy way for them to claw back.