You may also want to check the amperage rating of your service box. The only reason I could see not having 220v is that the service box may not have the capacity. Most houses are wired/plumbed for both gas and electric dryers. The wiring to the house tends to be two powered lines with 180degree phase difference and a ground line. If the power comes to the house from a pole, you can see two black insulated wires(power, two different phases) and a silver one(ground). 120v is supplied by going from one of the power lines to ground. The breaker box is often wired so that 120v power is drawn roughly equally from both phases. 220v is supplied by going across the two power lines.
How old is the house? How far away from other houses and power lines? I could see houses that are a significant distance from the 3k-v step down not having electric dryers (rural). Plumbed gas or propane?
Another question to ask is; are you ever going to use tools that require 220v because of a hobby.
With info you have provided so far, I would have to agree with FormerSanDiegan.
