I may be a bit dated - haven't been house shopping for nearly 15 yrs and trying to avoid the next round.

I suspect service size also varies greatly by local area standards and house size. I did a quick check and most of the newer housing divisions around here are starter/smaller family homes and have 100A standard with 150A or 200A as options.

In either case the cost for decent whole house protection is pretty reasonable compared to buying reliable outlet protectors.

- Eric