I made a spreadsheet that might help you:

https://docs.google.com/spreadsheets/d/19MQ9LBCMW4KY-ZNx0TeBCQNlIqJ8iHLZwqau6fKAr-g/edit?usp=sharing

You input how many alphas and betas you have of the card and the current spot prices. The spreadsheet will calculate how much it costs to max level your alpha and your beta and tell you which is cheaper. It's not a perfect tool, but it helps me.

Full post here:

https://steemit.com/steemmonsters/@nealmcspadden/steemmonsters-spot-value-spreadsheet