Quite a bit, depending on what we're talking about here. If you're interested in the broadcast side of things, it's all voice, and there's lots to listen to (tho a lot of broadcasters are shutting down, it opens the way for the smaller broadcasters to get through - and they can be more entertaining)
If we're talking utilities, there's still voice out there - particularly from air and some military. There's a lot less ship traffic than there used to be, mainly because they've shifted to satellites, but that's still possible. And with the better portables, some of the digital stuff - HFDL (which is used in the air services), ALE (which is used by numerous government and non government agencies) is all still good, as are some of the SITOR-B broadcasts (maritime).
It's a little hard to guide you without a budget amount, but you can get a Tecsun or Kaito portable for much less than USD250- but at that price level, there are several Software Defined Radios such as the SDRPlay which is about USD150.
New desktop radios are very few and far between - the Icom R75 was recently discontinued, but still available (if you can find one) as is the Alinco R8T. But that will set you back around 600 or so. If you know what you are looking at insofar as models go, and go with something of an educated eye, then hamfests and used lists (like the one at Universal Radio) would be the way to go. In fact, Universal sells a book that outlines many of the older radios, along with a website that has lots of useful tips
DXing.com Web Resource for shortwave, scanner and ham radio hobbyists
The other side of the equation is the antenna. One doesn't work without the other. Without knowing what you're going to get, or anything about your situation (can you put an antenna outside? how much room have you got to work with?) it's nearly impossible to make a solid recommendation.
I would decide on a budget first and foremost, then folks can make recommendations. Don't neglect the various online reviews, either.
Category:Receiver Reviews - The RadioReference Wiki
You will notice that we have a SDR article linked in there with LOTS of SDR related reviews.
Time for some homework.;.Mike