Bugei are made by Hanwei. However, they are not quite the same. Each Bugei is inspected stateside by a Professional Polisher and he is really really really good at what he does and his knowledge on Katana.
Bugei has also spent the money on their own exclusive designs (For example, Mr Tenold and Mr Larman have each put in designs for either koshirae or entire models --and if you know Nihonto or Polishing, you know their names) and I believe Bugei have spent a great deal of time making sure they are done how they want them done.
So this adds up to better Quality Control, as well, I believe, a much much nicer sword than one of the standard Hanwei Production models.
If you want something a bit more custom, I believe Aaron of Justice Armories does some very nice work as well, and he works on some of the DF models.
Of course if you are looking at spending a few grand, and you said its not going to be used, I would put it towards the real deal.
Just my 2c.