I had an old PSE Deer Hunter before I bought a new bow. I upgraded all my accessories except my sight. When I bought my new bow I purchased only the sight. I see nothing wrong with upgrading accessories to expensive ones on a cheaper bow. The accessories can be transferred and as mentioned above you don't have to put all that $ out at once later on down the road.
Walk-On Archery National Pro Staff Coordinator
2015 Prime Pro Staff
2015 Droptine Archery Shooting Staff
Bow: 2015 Prime Rival
Arrows: Black Eagle
Release: TRUBall BT3
Sight: CBE TEK Target