If you've made it all the way to season 5 of Warehouse 13, you already know how amazing the show is. The idea was different than the majority of the tv shows out there right now, which is why I think it had such a good run. I've gotten quite a few people hooked on the show just vaguely describing the plot.
Like all good things, though, it had to end. I suppose it's better that it ended while it was still so interesting and well loved instead of dragging on with boring and predictable plot twists like some other shows that are getting up there in seasons.
The dvd, as well as the extras were as good as expected... The only downside is the price. For only two discs with six episodes between them, I don't feel it was worth $30.