It's worth remembering that 90% of independent food service businesses go bust within the first two years, so takeaway owners can't all be making a fortune from what Gollob sees as high prices.
Further, staff working in takeaway establishments (and delivering food for them) are nearly always minimum wage employees and the National Minimum Wage has been rising faster than inflation for many years, forcing takeaway establishments to keep raising their prices.
Rather than comparing takeaway prices with those of restaurants, I've always compared them in my mind with the prices of similar food sold as chilled ready meals in supermarkets. (Indeed, several supermarkets now sell a range of products marketed as 'takeaway', specifically designed to emulate what's on offer from Indian and Chinese takeaways). Based upon that, I've always regarded takeaways as expensive and something which I might typically buy perhaps only three or four times in a year.