I have to agree that the price brackets given in the survey do not reflect the price of lawn mowers likely to be purchased by over 55's. The very cheap lawn mowers are only likely to be bought by those just starting out in gardening with no money and without the knowledge that you get what you pay for (sorry if that sounds patronising!). The price brackets would have been more sensible at less than £100; £100 - £150; £150 - 250 and over £250.
I did put a comment on the form that the lawn mower I need would not be available for the top price of £150. Last time I looked a replacement model for my mid-range mid-size petrol mower was well over £600 which is why I spend a not insignificant sum each year getting it serviced.