I meant that, while the spam can is cheap to fly (and to accumulate hours in), it is a bad cross country travel instrument because
- A more than slight crosswind at your destination makes it a risky venture
- The limited fuel capacity of 26 (?) gallons limits the range as well as the possibilities to divert if necessary.
So if you are mentioning the "out of country" travel possibilities to lower the average fuel cost, you are faced the restrictions above in a C152.
As a result, you would want to make those trips in at least a C172 or a PA28 or something that carries 48 gallons.