I use dropbox for saving import documents/receipts/statements. Being early adopter, have 5GB storage. All I need is a peace of mind that I don't loose important stuff if my computer breaks down or temporarily becomes unavailable. I don't need any other feature. If I had to pay about $10 per year, I would just use it happily. But their minimum plan is >$100. I occasionally use file-requests feature. If it was like pay as you go type, that would be good too. I think reasonable low tier pricing will get them consistent long term revenue.