Me being cynical....I can't help it...I'd check out the performance of your local Triumph Dealers before I bought one.........via feedback on Social Media.
These new models might appear to be a nice bike at a reasonable price, but many Triumph Dealers ain't got a particularly good reputation and the Triumph Factory isn't a lot better......I think their main objective in life is to sell high priced bikes and high priced accessories and any problems (genuine ones that shouldn't really be problems - or they cause the Dealers Warranty grief) are swiftly swept aside.
Compare the £5K for this new bike against their £15K to £20K other offerings - where Owners don't seem to be too impressed with what they have got, or the service they have received when they have problems, and maybe that will give you something to consider.
Of course I could be mistaken, and Triumph certainly do make some fantastic bikes for the money, but being a member of a few Triumph Forums....and seeing the Owners banter on a regular basis, that's the general impression that I get.
Good luck though if you decide on buying one.