3-4 years ago I got a 30GB Creative Labs Jukebox Nomad Zen Xtra (not nearly as snappy a name as "Apple iPod," is it? That may be part of the problem).
At the time iPods were 20GB or 40GB, for about $400 and $500 respectively. You could assume that a 30GB would go for about $450. I got the Zen Xtra for $212 at Circuit City. That price stuck for over two years while iPod prices crept down.
Of course I bought the protection plan and fortunately for me, almost right away it developed a couple very minor glitches that were worth living with, for the knowledge that they would one day (just barely) qualify for replacement under the protection plan. One problem was that one out of every 20 or 30 times I turned it on there would be a mild static-y noise over the audio. Once in about every 40-80 hours of play the static would come on out of the blue. Turning it off then back on fixed it.
Another problem was that after a while the buttons got a tad glitchy: to get the command I had to press noticeably harder; except for every now and then they were overly sensitive. Both amounted to occasionally mild annoyances, but never got frustrating. Also I was a power user, with about 100 hrs per month.
Navigating was always easy. I wasn't a huge fan of the pc software for transferring files onto it, but I got used to it. I was envious of a friend who had an early iRiver that allowed him to drag and drop folders. I had an extra cell phone battery that I did use for the player. I often used it for long trips and it was nice to know I always had the extra battery. Also, at the time, iPods were boasting 10-12 hrs battery life, I was getting no less than 14.
My Zen was a tad thicker and heavier than an iPod but it wasn't that noticeable. The display was fine. It was easier to navigate while it was on my belt. If I didn't need to actually look at the display to navigate menus, I could do all commands while it was on my belt, no need to even open the holder. With the player on my hip I could: power on/off; play/pause; FF/RW; go to next or previous tracks; change volume.
I used to flout in the face of my iPod friends the two best features. One was the ability to make playlists on the fly, the other was better audio quality. I listen to a lot of jazz, acid jazz, electronica etc in a factory environment and clear accurate bass is essential.
About a year ago I noticed that the last 40GB Zen Xtra was on the shelf of Best Buy, for that still low price of $212. By then iPods were coming down in price a bit but I loved the Zen by then. So I bought the 40, then sent in my 30 and got store credit at CC. I got the 40GB even though I knew that my needs were changing and I desired something smaller for everyday use. But I knew that no matter what, I could make good use of a solid, reliable, flexible portable 40GB hard drive.
For the smaller player I recently got a Samsung 1GB flash YP-F1. The display is almost too small, but it gets the job done. True I don't need the voice recorder or FM radio. But it manages folders well, has decent enough equalizer, I can drag and drop folders so no need to use the software; which is OK as those things go. Downsides is no playlists on the fly, the sound quality is a step down from the Zen but this player is primarily for podcasts anyways.
The two best things: the size and price. Its smaller than your thumb and flatter and very light. It was the smallest one available at the time. It was only $109. It fits in my jeans coin pocket; or I clip it on my T-shirt collar or on my cell phone holder.
Bottom line, except for a few minor trade-offs, I think my non-iPod devices worked just as good as any iPod. And for a lot less money. The Zen Xtra was a tiny bit bigger, but the sound was better, access to the battery was nice, playlists on the fly is essential. I don't know how you could live with a 40GB device that doesn't allow for that.
The Samsung YP-F1 may be a tad thicker than a Nano but not more mass, not heavier. I love the built in clip, the display is actually robust, loading and navigating is a breeze.
I'm sure that for many, for entirely practical reasons, iPod is the way to go. But for very many people, its just herd mentality, eye candy, not performance. I say shop online, read reviews, think about which features are most important. Then go into the stores and hold various devices in you hand. Take a set of headphones with you, most display models have some music files loaded.