What I'd do is buy say, 5 official samples each of Jubilation and Dia from Parfums Raffy (each sample is $6 and 2ml, so for $30 you can have 10ml of Dia, and $30 more 10ml of Jubilation). Given that these are one or, at most, two spray frags, 10ml will last you a LONG time.
You could then buy a 3ml bottle of Tribute from somewhere like Zahras (I think this is available. Not sure as i can't seem to load the Zahras site right now) and still have spent as much or even less than you'd have spent for just one 50ml bottle.
edit: Ah, got to Zahras and sadly no 3ml size is available for Tribute. Well, I still think the sample route is a great way to get "decants" of Amouage, and you can get the official samples in nice atomizers for cheaper than you'd pay at The Perfumed Court for the same amount. Actually, $6 for 2 ml of juice works out to $300 for 100ml, which is the cost of something like Epic or Lyric man. So basically, you can buy any amount you want (via 2ml samples) at the same per ml cost as a full bottle. Where else can you get decants that cost the same per ml as a full bottle!?