Making awful mouses (!) is a long-standing tradition with Apple.
The original Macintosh mouse – Pro: First! (on a consumer device.) Con: rubber-coated steel ball carried desk gunge into mechanism, requiring frequent partial disassembly to scrape gunge off sensor rollers with fingernail; single mouse button good for beginners, less good for experienced users.
Original iMac mouse – Pro: it’s a USB mouse. Con: hockey-puck shape requires unintuitive grip; same old internal mechanism when competitors are already producing laser mouses; style-over-function looks.
Clear shell mouse – Pro: it’s a multi-button laser mouse. Con: deliberately conceals its multi-buttoned nature so Apple haters will continue inane jibes at Macs; plastic ring on bottom traps desk gunge; corded, when competitors are going cordless; click mechanism vague, sometimes sticks.
White mouse – Pro: it’s a mouse and a trackball. Con: trackball is tiny nipple on top that traps gunge, can’t be cleaned.
Magic Mouse – Pro: it’s a mouse! Con: it’s a trackpad! It’s a mouse and a trackpad! No visible cues to indicate how this thing works.
Overall, Apple’s mouse-making efforts are a comedy show perhaps designed to encourage a healthy third-party ecosystem. I know I’ve been using third-party mouses for decades, since I plugged an early laser mouse with a special reflective mouse pad into my Mac Plus and marvelled at the precision pointing. Some Microsoft mouses have been (oh, the shame!) quite good, even if the paint rubs off. Currently I’m using a Wacom mouse and tablet (Pro: cordless mouse powered by tablet. Con: only works on tablet; slippy velvet mouse base utterly encrusted with desk gunge.) But this latest chapter of Apple mouse jackassery is all too typical. Has Jonny Ive switched to decaf? Wake up, Jonny!