I've got a Reezen 7.0, and started with a mid range PSE and believe me their is a world of difference between the two.
But the reason was $700 after tax, and the PSE was ~ 320 when I got it.
They call that diminishing returns
You have what IMO is one of the absolute best hunting bows Mathews ever put out. The Reezen, the SBXT, the DXT, and the Z7 are my personal favs.