Responsible advice would have been to sweat out the heat issues for the time being, since the existing card isn't exactly a perfomance slouch, and there's still too little Dx11 benefit to anything to be really excited.
If you weren't planning on outlaying £360 - and were perhaps looking for a low to mid-range card, then there's little opportunity to get upset in a month or so.
IF, and I repeat IF, you spend £360 and in that month or so (which I'm sure a 295's performance wouldn't upset most people during that month), you find that the card's price drops significantly and is no longer the performer it was once championed as.
A month compared to a possible 4 year duration that may be DirectX 11 is insignificant.
We really need to think more about the member's best interests than promoting our favorite team or camp for whatever reasons.
For sure, the purchased card will perform very well. But, judging by the existing card, the member is looking to purchase the top card of a generation with large cash and although £360 isn't much to some people, it's a massive purchase for others who would expect it to be an investment.