Special Offer - Adobe
I noticed a few days ago that Adobe are currently offering Adobe Photoshop and Lightroom via a monthly subscription of £8.78 per month so for 12 months its £105 which seems like a good deal
You can install on more than one machine (limited to 2 of the same OS )
Obviously for those worried about relying on renting your software you can still keep your old photoshop etc installed
You are required to run the software once every 30 days (while connected to the internet) for it to check your software is still registered.