update
Yesterday I had time to run over to the local Williams-Sonoma store. They were selling the Citiz (next larger model), bundled at a discount with the electric frother, for $70 more than the cost of the Pixie, and the frother alone sells for $100 normally. So I forked over $70 and walked out of W-S last night with a Citiz and a frother, plus they gave me as a bonus three packages of coffee capsules.
Re: how to make Americano style coffee in an office environment where more people drink coffee than espresso. As ronhic suggested above, the salesperson (who owns two Nespresso machines, one in her kitchen and one in her upstairs bathroom) recommended selecting a short coffee, then hitting the water button one more time to top off with hot water.
The other option in our office is that we have a reverse osmosis system with a dispenser that dispenses chilled, room temperature, or hot water. There is even a "reboil" feature that brings the hot water vessel up to boiling for tea* (or use it "hot" without reboiling for hot chocolate, instant ramen, broth, etc.). The hot water tap would be nice if someone wished to customise how much water was added, and the temperature could be varied by using either "as is" hot water or "reboiled" hot water.
We have very hard, not very tasty water here, so the R.O. system is amazing, it produces delicious water. Of course, we will fill the Nespresso tank with water from the R.O. system. At home, I don't have R.O. and rely on my refrigerator's filter, which produces reasonably good water, but nothing like R.O.
*no, we can't buy Bushell's here, at least not in a normal supermarket. There are British Goods stores here that cater to Pom expats, but few of them ever stock goods from Oz. No Bushell's, no Lamingtons, and rarely any Vegemite. However, if you are seeking a tea cozy with the Royal Family or Tower Bridge on it, yes you can buy it here, as well as "things for tea" (biscuits, clotted cream, etc.). Few stores here sell lemon curd because we can make it ourselves from fresh lemons from the garden and it tastes better than what you buy in the UK, anyway.