Edit: I can't imagine swapping HDD for flash saves more than a few grams, can it?
I ultimately replaced it with a Zen Stone: https://en.wikipedia.org/wiki/Creative_Zen#ZEN_Stone/Stone_P...
With the classic iPod you've got a bad UI instead of a good UI and a large object instead of a small one. And while it will be lighter without the hard drive, it will still be a lot heavier than an mp3 player. It's pure downside on several different dimensions.
If you want to play your music on a device shaped like an iPod, it's even easier to use your existing phone.
some of the older models were definitely better, but at 20-40 bucks each and no real dependencies on the rest of my personal computer ecosystem it's a fair trade.
it's only that Spotify and YT music are easy to use that I haven't bought a new one. with enshitifacation being a thing I might go back
I subscribe to Qobuz and buy a lot of lossless DRM free music and can recommend them as well, tho there was recently a big swath of the available music dropped due to licensing issues (hence the utility of downloading DRM free music). I also price shop against the digital albums and often a CD on eBay will be cheaper, I don’t mind missing out on the “24bit 192khz hifi” to save a few bucks.