Here are some potential pros and cons of purchasing real estate in Swansea, Illinois:

Pros:

1. Affordability: Compared to other cities in Illinois, Swansea has relatively lower home prices, making it an affordable option for people looking to purchase property.

2. Location: Swansea is located along major commuter highways and is within easy driving distance of both downtown St. Louis and Scott Air Force Base, making it a convenient location for those who work in either of those areas.

3. Community: Swansea has a tight-knit community, with several community events and activities throughout the year. Additionally, there are several highly-rated schools in the area.

Cons:

1. Property Taxes: Property taxes in Swansea can be relatively high compared to other areas in St. Clair County, which could affect long-term affordability.

2. Flood Risk: Swansea is located in a floodplain, which means that some properties may be at risk of flooding during heavy rains or storms.

3. Limited Growth: Swansea is a relatively small town with limited room for new development, which could limit the potential for long-term investment growth.

As with any real estate purchase, it's important to do your own research and consider factors like your personal preferences, budget, and long-term goals before making a decision.