| Boston | Zaventem | |
| Internet (6 Mbps, unlimited data) | USD 56.82 | USD 47.46 |
| Water bottle (1.5 liter) | USD 1.70 | USD 0.68 |
| Tennis court rent (1 hour on weekend) | USD 27.49 | USD 20.34 |
| One-way ticket (local transport) | USD 2.50 | USD 1.90 |
| Utilities (Electricity, Heating, ...) for medium apartment | USD 204.32 | USD 184.41 |