Hey guys, so I've been trying to figure out what plane I wanted to level next, and a big part of that was costs. I got sick of plugging things into a calculator over and over so I made a spreadsheet. Eventually it got so big I decided to put in the costs for every plane and turn it into a tool everyone can use. Unfortunately it's been ages since I did any web design, so I'm just leaving it a spreadsheet for folks to download.
The Costs sheet is basically a huge lookup table of the plane names and prices for each level.
The Comparisons sheet is where the calculations are done and you can view planes side by side.
So to use the tool, click on !Select Plane, and choose your plane. This will populate the Cost column for that plane. Select your plane's current level next to "Current Level". Level 0 would mean you haven't purchased the plane yet. Next to Non-Standard Upgrade Form you can choose TRUE to apply an NSU, or FALSE to not apply one. Total Cost is the total cost to reach each level from your plane's current level.
This was built in LibreOffice, so if you use that or Google Docs, I highly recommend downloading the .ods file. I don't have a copy of Excel so I have no idea how well the .xslx file exported. I took cost data from seesaawiki, gwiki and Acepedia. I cannot guarantee in any way that these costs are accurate. They are also incomplete. For a couple planes, I took the prices from another plane where the pattern was identical. In those cases, I left a comment on the plane's name in the Costs sheet. You can't use this tool directly from the Google Drive preview. You have to download it and use a spreadsheet program.
Hope you guys find this useful, feel free to share it with anyone and everyone, be it 4chan, gamefaqs, Facebook, wherever. I only have an account here, and plan to use this thread for any suggestions and feedback.