See http://yo9irf.blogspot.co.uk/2016/03/icom-ic-7300-review.html?utm_source=amateur-radio-weekly&utm_medium=email&utm_campaign=newsletter .
YO9IRF takes a look at the IC7300. MLS is offering this for sale but at a price over £1000, which may interest "early adopters", but is much higher than most are prepared to pay, I believe. Expect the price to drop soon. Even with the dollar and yen exchange rates, I think a much lower price should be expected and demanded.
£799 would seem a fair price to me. Don't forget that early radios are often riddled with bugs that later get sorted. This is the first time the transceiver will have been mass produced so it is quite likely this will occur, although not inevitable. Personally, I can wait.
I found this via Amateur Radio Weekly at AmateurRadio.com. Always a good source of data.