You start the thread by saying you are a hobby photographer so my advice is to get what makes you happy. If you can see a benefit in investing money in Adobe then get it.
I am a minimalist and hate spending money on software so I tend to get a bit of software and stick to it. Paint Shop Pro 7 is 10 years old but suits me and I just had to get Photomatix as I love the overdone tonemapped look. I dont own any Adobe software but I get what I want out of my photography and I have no pretensions of selling any of my work. My whole workflow is based around Irfanview, a great free software for batch processing pics for use on the web.
Settle down and take your time to pick what software suits you.