However, at $105 per SF seems very low.

You get a deduction for the contribution, the gains grow tax-free and as long as you use the proceeds for health-related expenses the funds come out tax free as well. 

I can’t think of an expensive subscription that doesn’t provide an app.

.- Low Interest Rates: Competitive interest rates make property ownership accessible, especially for those with stable income like service members.- Military Presence: With U.S. military bases across Germany, local banks are accustomed to assisting service members with financing.How to Qualify1.

They are exceedingly rare, thus very expensive, but I believe they represent an excellent long term steady income and store of value.  

Between lost (or forgotten) coin and government buying, I'd say the total float is too low to ever make BC a widespread 'currency'.

We bought the stair tops from Lowes and had them delivered to our house.

What is the purpose of the two million low-interest loan to Seminar Solution LLC?

The combination of Germany's stable economy, well-regulated property market, relatively low interest rates, and the opportunity for long-term capital appreciation make it a compelling choice for U.S.

This is after covering all expenses and setting aside a certain amount for reserves to cover future expenses like capex or vacancy.