Our old ball-type Dyson was getting long in the tooth. It was a great vacuum, but many of the plastic parts had outlived their expected lifespan. I was always confused because "ball-type" is not really what you might be thinking.
Then one day a big box showed up at the door. It wasn't bike parts, ammunition, or wine, so it didn't interest me. It turned out to be one of these newfangled robotic vacuums. My wife thought we needed it to supplement the old-school vacuum. She did a lot of reading, and Shark was supposed to make the best. I thought it was frivolous. But you know what? It does a great job. It did a much better job than the old Dyson.
A couple months later, another big box showed up at the door. Again, it wasn't bike parts, ammunition, or wine. Apparently carrying the robot from one part of the house to another is unsatisfactory. This Shark robot is the same as the other, except it empties itself. I have to admit that the whole thing is kind of amusing, and these contraptions work great.
While you might be thinking this is the end of the story, it is not. That old Dyson ball vacuum in the closet was still old and clunky. Shark also makes regular style vacuums. I'll bet you can guess what showed up at the front door--and it wasn't bike parts, ammunition, or wine. The new regular style Shark is pretty nice. It's better built than the old Dyson, but it's also heavier.
I think the Sharks are all great. I don't know what this has to do with eMTB's. But if you buy new vacuums for your wife (or husband if you're a lady MTB rider) and use them regularly, your extravagant purchases of bikes, parts, and gear are more likely to be overlooked when the credit card bill comes in the mail.