Open Office-free- can turn files into PDDF
Not a big deal IMO, if you need Photoshop to run your business, you’ll pay it, if you don’t you won’t. I suspect even with the current model most home users are not running the full Photoshop, and many that are, are running bootleg copies.
With the very high price ($600+ for Photoshop) and up to a few thousand for the full CS suite, Photoshop is not aiming for the home user market.
For better or worse, Photoshop is the de-facto standard for web design and photo professionals, and paying $30/month is not really any more expensive than paying $600 and upgrading every few years. If you are working in this industry, and $30/month is too much money, than I suspect your business model is broken.