I agree. There is no breakthrough on the horizon that is going to make a fusion plant have the complexity closer to a natural gas plant than a nuclear fission plant. Therefore the costs will remain high.
It could still be a useful technology, especially in space. I could see a moon or mars base powered by fusion.
Gas has low capital cost but relatively high fuel cost, especially outside the US. For most fusion designs (possibly excluding NIF), the fuel cost is insignificant.
Also of course we might want to consider the carbon emissions of gas plants.
