Yes...
...for most contractors (and I am one) a PSC and a contracting life are just a way of getting paid more and not having to commit to the dubious pleasure of being a permanent employee. I have always found that the extra pay compensates for the gaps in employment, allowing yourself holidays and putting money away for a pension. There are some expenses you can claim (if the contract allows them), and some extra expenditure (employer's liability insurance and professional indemnity) and you have to have an accountant.
The main benefit you get from permanent employment that you can't get if you're a contractor with a PSC is permanent health insurance - so if you fall long term ill you have a problem that most permies don't have - but then in that situation you've got big problems anyway.