While the exact reason has never been documented, if you look at that mouse's design, you'll see that its first generation had a regular battery compartment on the bottom. When gen 2 arrived, they fully reused the same shell and only replaced that bottom part to now be an integrated battery with a charging port instead of a compartment for AAs. Moving the charging port would've required a brand new design, since every edge of the mouse tapers way too much for a port to be placed anywhere else. They would also probably need to change more of the internal structure, as opposed to just swapping a battery module and changing the bottom lid. In this case the constraint seems to just be about functionality and manufacturing. Apple has made many controversial design decisions that have no functional justifications in the past, yet people keep bringing up the mouse.
throw_away_623|2 days ago
At the time, I remember someone claimed that the reason was that they were afraid people could leave it plugged in for convenience. Apple thought that would lead to a worse experience because their mouse was designed to be used wirelessly. I think it was actually more related to aesthetic "icks" by the designers, because people would have disconnected the cable if it was in the way.
V99|2 days ago
The original USB mouse (for the first iMac) was round, so you couldn't orient it in your hand without looking at it constantly.
And it came with a very short cord (because there was a port on the right side of the keyboard to plug it into). But then the laptops got updated with USB ports and they were only on the LEFT side of the case.
For at least a year or two you could not buy an Apple mouse for your Apple PowerBook and use it in your right hand, because the cord was too short to go around the case.
Eventually they shipped a "Pro" mouse with revolutionary elongated shape and longer cord. (...and optical tracking, and what looked like zero buttons, which were pretty neat)
jbverschoor|2 days ago
leoc|2 days ago
A lot of people really will just anxiously leave the cable in the whole time if given the opportunity. I have a wired/wireless Logitech mouse and I confess that I hardly ever remove the cable. Between this, and the space and connector issues of adding a "normal" cable connection as referred to in the grandparent, we have two reasons to think that Apple's decision wasn't all that clearly bad, let alone one of their worst.
specialist|2 days ago
It's still one of the worst ideas. Insult to injury.
alexdbird|2 days ago
There are plenty of contenders for 'worst ideas they ever had' and this just isn't up there.
moron4hire|2 days ago
benj111|2 days ago
If this were a £10 mouse then this excuse might be valid, but it isn't.