Without discussing the merits of F2P, marketplace, etc. I see what I believe Phaedrella is saying:
The buttons pointed to with red arrows are of one style. The ones pointed to with yellow arrows are of a different style. The "Shop Now!" button has the style like the red arrows but is presented in the bottom row among other items with the style of the yellow arrows.
One of the following should be done IMHO:
- "Shop Now!" button should be moved to one of the areas containing the same style buttons
- The "Shop Now!" button's style should be changed to match the buttons surrounding it
- The buttons surrounding the "Shop Now!" should be changed to match its style
- Try some deep breathing exercises and accept how trivial this design issue really is
For me, the second and forth option make the most sense. But that's just me. 