A few tips:
- Get the version with special offers. Some of them are good and they save you money.
- If you never ever read in situations with low light, you don’t need the Paperwhite. But I still like it.
- Don’t let your inability to afford the Paperwhite keep you from getting the regular Kindle.
- Amazon’s ebook “ecosystem” is the best available and seems to be the best bet for the future (though no human knows this for sure). If you want to still have your ebooks in 30 years, I believe Amazon is the safest choice.