It's a well-known fact that the cabins that sell out first on a ship are those on the high-end and those on the low-end. Therefore, the least expensive Interior Staterooms are usually gone soonest.
Fans of Interior Staterooms tend to be people who feel that they are only going to use their cabins for sleeping, so why waste money on features like windows, balconies, or extra space that they'll be using very little.
If you feel you're in that group, keep in mind that a room that has no outside light can be a bit of a shock, if you've never experienced it. That said, many folks are big fans of inside cabins and the value they represent.
Also keep in mind, that Interior Staterooms (especially the showers) can be extremely ... compact. Cozy is another frequently applied adjective. It's a fact that even petite folks can feel claustrophobic in an Interior Stateroom bathroom. So, you might want to give some thought to this, especially if you're ... not a petit person.
