One point, if it dosen't oscillate on the bread board then it more than likely not oscillate on your PCB.
I have used a bread board at 20MHZ with no problems but obviously it depends on the circuit.
Also, if it works on the bread board, it may not work on a PCB as you may have to add capacitance to your PCB circuit to get an oscillator design to work.
I guess the point is be aware the capacitances are there and they will effect your circuit (pro or con).
Also the long hook up wires used in a breadboard design will act as caps or inductors/antennas.