This will all come down to what is and what is not reasonable and it is very much a judgement call.
It probably depends on your personal point of view, but as long as each LA has a weel thought-out policy on how they will treat situations like this and apply it uniformly then there should be no chance of any allegation of bias.
Different LAs will grant DHPs for different things, as they will have different priorities according to the needs of their area.
So whats reasonable –
a mobile – well how many people can live without 1
satellite TV – person may be locked into a longish contract
fags – I couldn’t live and be reasonably bearable (although my colleagues would probably say I’m not anyway!!) without them
So, yer pays yer money, and yer takes yer choice….. as long as you do it consistantly. 8)