If you just wanted Photoshop and not the cloud storage, your best bet would be the Photography plan, which is $10 a month and includes Photoshop and Lightroom. Placing the data in Excel, and assuming someone were to take the $585 Amazon price for Photoshop and upgrade every 2 years, it would take 14 years before that was a better deal than using the subscription plan. If you assume the $700 price tag, it takes 25 years. However, it only takes 3 years if you use the student plan numbers (though as a side note, it looks like the subscription plan is the only way to get Photoshop now).