I want to expand on why i used a groundfos pump ($400+) vs a tradition shallow well/jet pump (-$200).
Its the auto shut off feature. If there's no water it will turn off and try to restart (maybe once every 5 minutes), preventing bearing failure. I have had this happen, where the pump was running dry for several hours and the pump was destroyed. In that case, buying a second pump almost equalled the price of a groundfos.
The other issue is ickyness. I used a harbor freight cast iron pump that had a self contained pressure tank and switch, so the only thing missing was a check valve.. It was probably close to $100 on sale. The pressure was good for what i used it for. The problem was the ick. If it sat for a bit, i would get a surge of rusty water. I still had an issue of overheating if water ran out of the tank.
I am not sure if groundfos is the only pump or if there are cheaper alternatives with ick free auto (dry) shutoffs. If there are, i'd love to hear about them.