From what I can see there's not many routes that only Ryanair service. People who choose the cheaper option should then not be expecting a more exclusive service.
Yes, there's often bits added as you go thorugh the purhcasing process but you still have the choice to back out before you press Go for payment. There are many extra payments which when you think about it are fair (paying more for extra weight luggage, paying more for a person to check you in rather than online, paying more for credit cards which charge them commission). I'd rather pay for what I use than pay more for subsidising a one-price-suits-all policy.
They're also great with kids as we get on first. So, they're extremely popular and if you don't like their service, pay for someone else, many people do.