Dude, read up on the internet about the differences between 3 piece and 2 piece boots, seriously, before you put that much money into an investment. Basically, here's the deal:
About 15 years ago, Raichle was a seriously great boot maker and they developed the revolutionary 3 piece boot called the Flexon. It made a huge splash and pros still trade them and spare parts for them on ebay (that should speak volumes, a 15 year old boot STILL in demand by the best of the best). It performs like no other boot in the way that it flexes. The flex is especially nice for soft snow and off-trail. Basically every other 2 piece boot out there is just a variation on the classic Lange race boot design, and the Flexon was the only one that was fundamentally different.
The owner of Raichle died and the company passed to his daughter. She wasn't too interested and the business got mismanaged and fell apart. The Dalbello subsidiary company in Italy made Raichle's cheaper boots and didn't want to go under when the rest of the business did. So, they got a hold of the patent for the 3 piece boot. They developed the Flexon technology into the Krypton series. The Krypton is basically an updated Flexon. They changed 2 of the cable style buckles for modern buckles, they made the foot a little roomier in the vertical direction (the Flexon crushes feet), and they made it warmer (the Flexon is pretty cold). One way or another, the original Raichle molds got sold and a new company called Full Tilt was started around the idea of reproducing the original Flexon design. So, as it stands, the 3 piece boots are the Flexon, the Full Tilt, and the Kryptons, and every other boot out there is... well... just another boot.