Thats just a down payment old chap, total bill will be far more.The deal is limited to confidence motions and supply bills, anything else requiring support will be extra, and agreed on a case by case basis and it will need revisiting in 2 years, should they survive that long.NI already receives large amounts from the UK, significantly above the norm, it has about the highest imputed deficit in the UK .
And the reason the whole of the UK should be paying additional amounts to NI of £150 million for ultra fast broadband, £200 million for health, £100 million health and education, £400 million for infrastructure, additional amounts for mental health etc £100 million for 'deprivation' basically giving the population of NI initially about £540 per head of free additional income, when the public sector in the uk is facing pay freezes and cuts?
Additionally with further movement of public sector jobs out of the SE to NI and elsewhere, enterprise zones and additional inward investment plans and promotion. It will also mean lost revenue from a likely reduction in CT, and air passenger duty, to the UK exchequer, not to mention other lost revenue due to the deal
Super fast broadband alone will be about the same as 25-30 years of Halls profits shifting spam around the North

Then there's the peace agreement at risk, assembly suspended since January and one side now propping up the UK govt the so-called honest broker meant to impartially hold the agreement together whilst being dependent for it's political life upon one side to that agreement .An agreement to extend the Military Covenant to armed forces in NI wont help optics.
Best tell the local kids, babies, in the street or up chimneys to cough up their down payment of £7 plus plus pa, and forget the donkey
It's a flat cap moment obviously - is Blackpool treating for twitching as well, the wonders of modern medicine eh
You could both have your picture taken with 'kiss me kwick' hats on. It would be a collectors item I'm sure