HP has a habit of introducing new models frequently, so what someone has experience with probably isn't sold any more. FWIW we've gotten good service from our HP1200 series LJ for a few years now.
If it's convenient to order direct from HP, you might take a look at their refurbished and overstock models at HP Outlet Store
We do have a cheapo HP multipurpose inkjet (because it's easy to toss into the camper) and we've gotten better performance than a few other brands I've heard comments on; but I'd generally recommend staying with separate single-purpose printers for reliability, especially if a B/W Laser meets your needs. Lasers are a lot cheaper in printing costs than inkjet - as you probably know.
The cheapest printers are in the "Personal" category, but like most other makers HP tries to "automate" everything in ways that I find annoying. I'd stick with the "Home Office" level at least.