Salesperson: If your vacuuming needs are limited to cleaning small areas of uncarpeted floors, an inexpensive handheld vacuum cleaner is likely to be sufficient.
Conclusion
If you only need to clean small areas of uncarpeted floors, a cheap handheld is likely sufficient.
Evidence
Most cheap handhelds are easy to use and will probably satisfy all your needs for wood / tile floors.
Evaluate
The "satisfy all your needs" in the premise matches pretty well with the "likely sufficient" in the conclusion. It seems like the biggest vulnerability of this argument is that the sales pitch is directed at wood / tile floors. Maybe there's some other non-carpeted surface we would want to be vacuuming.
Goal
The answer needs to make us feel better about wood/tile being the main surfaces this vacuum would be used on, making it seem like ease of use is in important factor in buying a vacuum, or ruling out any potential downsides the cheap handheld vacuum might have.