I've never had a machine shipped so I can't answer that question, but there are many here on the blog that have, so hopefully one of them will chime in. Whether washers and dryers are easy to repair or not depends largely on you and your mechanical aptitude. For me personally, the greatest difficulty is in finding the necessary parts. But to be honest, the search for parts and the thrill of finally finding them is half the fun of this hobby.
As for your other question, yes, people here do sometimes sell machines and they frequently offer them to people here first. But as the members of this blog are spread all over the country, when a machine is offered here it always seems to be someplace well out of reach for me. So for the most part I concentrate on Craigslist, and it's worked out well so far. I recently found a very rare Apex washer listed locally, only the second one known to exist. It's now in very good hands as part of Kevin's private collection.(RevvinKevin here on the blog) So keep checking Craigslist, and not just the appliance section. Kevin's Apex turned up in the antiques section, and I recently found a nice Maytag A502 that I gave to another member in the free section. So keep looking, and with a little patience you'll find what you're looking for.