Editing Upgrading Aerogear Guide

It's cheaper to buy the 5 gold mount and use wind widgets to upgrade it than buying the prettier ones.

Why?<br>
The 5 Gold Flying mounts start off at a speed of 1.00/3.00.<br>
Every upgrade increases it by .50 so to max it you would need to go through all four upgrades.

*1st upgrade 1.50/3.50 - 20 widgets
*2nd upgrade 2.00/4.00 - 60 widgets
*3rd upgrade 2.50/4.50 - 80 widgets
*4th upgrade 3.00/5.00 - 80 widgets

Wind widgets are 10 silver ea. or 90 silver for a 10 pack.<br>
So given this information the cost of upgrades would be
*1st upgrade - 1 gold 80 silver
*2nd upgrade - 5 gold 40 silver
*3rd upgrade - 7 gold 20sliver
*4th upgrade(Final) - 7 gold 20 silver
*Total upgrade cost is 21.60 gold + the cost of the mount = 26.60 gold

But what if I don't like the 5 gold mount? What if i want to buy the other cooler looking mounts?

*'''10 gold flying mount'''
**Start speed. 1.50/3.50
**1st upgrade 2.00/4.00 - 60 widgets = 5 gold 40 silver
**2nd upgrade 2.50/4.50 - 80 widgets = 7 gold 20 silver
**3rd upgrade (final) 3.00/5.00 - 80 widgets = 7 gold 20 silver
**Cost of upgrade is 19 gold 80 silver + mount = 29 gold 80 silver

*'''15 gold flying mount''' 
**Has the same speed and upgrade cost as the 10 gold mount
**So upgrade cost is 19 gold 80 silver + mount = 34 gold 80 silver

*'''20 gold mount'''
**Start speed - 2.00/4.00
**1st upgrade - 2.50/4.50 - 80 widgets = 7 gold 20 silver
**2nd upgrade(final) 3.00/5.00 - 80 widgets = 7 gold 20 silver
**Total upgrade cost is 14 gold 40 silver + mount = 34 gold 40 silver

*'''30 gold flying mount'''
**Starting speed 2.50/4.50
**1st upgrade (final) 3.00/5.00 - 80 widgets = 7 gold 20 silver
**total upgrade cost 7 gold 20 silver + mount = 37 gold 20 silver