Difference in purchase cost between gas pump or heat pump

I thought the 52 GW cap is / will be abolished?

That can be assumed, but to my knowledge it has not yet been carried out

what is truly future-proof? with gas, you certainly can't go wrong. geothermal heat pump is not affordable and far from ever being economical.

air pump and photovoltaic is a good combination, but also costs 15,000 to 20,000 more than gas.

A surcharge of up to 10,000 euros for a heat pump is absolutely common and not unusual for GU/GÜ's etc. The costs for [Solarthermie] and [LAS] are already included. This means that despite the sometimes high price for a construction-site necessary gas connection of, for example, 1,500-3,000 euros, you are still 5,000-7,000 euros cheaper in the end with a gas boiler than with a heat pump. (In the case of a GU/GÜ)

Individual contracts, architect houses, etc. are a completely different matter.

My opinion on this: Heat pump instead of gas, because gas is not future-proof, as you already say, even if it is cheaper at first.

The federal government probably sees it differently... or why are billions being spent on the construction of Nordstream2? On the topic of fossil fuels and the climate debate: Similarly, the existing natural gas network could in the future also be (partly) supplied with biogas.

Not only the federal government.