Worthy equipment upgrade?

Current shoe




Shoe in Shop (Cost is 5m)





Using Maple Hero level 6, 3% STR grants me about 23 STR. Therefore, that shoe is about 29 STR.

Do you think it would be worth the 5m to upgrade from 16 STR, 12 DEX, 13 Speed and Spikes for 6STR and +3% STR?

Keep in mind that MW % =/= potential %.
MW is based on your base str. If you have 999 str and MW6, that's +29 str.
Potential Str is based on everything you have. If you have 999 base, 100 from equips, and MW6, that is +29 from mw,+100 from gears=1128 Str total THEN you apply the potential str. 1128*1.03=1161
1161-999-29-100= 33 str from that same 3% potential

While in this case it's only a difference of 4 str, the gap grows bigger when you have mw30, and more str from gears.

Anyways it's just 5 mil o.o