Yep I'm with you.
There's a lot of criticism of SP regarding their charges and suggestions that their indexing shortcomings are a deliberate ploy to extract money.
My view, as someone who has used SP extensively (and spent a fair amount of £££s!), is that they offer a unique service which can be quite productive if you are careful about how you construct your searches. That's up to you to learn and there are plenty of people ready to give advice!
Of course you will get irrelevant results which you have to pay for - but that is what comes with the privilege of being able to conduct your research from your PC instead of journeying to distant libraries, museums, record repositories etc.
There are some difficulties with their indexing but in my experience they are always ready to correct errors and refund credits where due, and opinions/ complaints can always be aired through the user group.
I give Scotlandspeople the the thumbs up - the cynics among us don't seem to know when they're onto a good thing!
Alastair