You're quite correct, thank you! I'll do this the long way really quick so everybody gets what we're talking about:
Here are the combinations, 34, 48 and 89, so let's look at each individually:
34: (2/47 * 1/46) = 0.00092506938
48: (2/47 * 1/46) = 0.00092506938
89: (2/47 * 1/46) = 0.00092506938
.00092506938*3 = 0.00277520814 or 1/0.00277520814 = 1 in 360.3333...
So, there you go. The possibility of hitting the SH is worth 250/360.3333 = 0.69380203579 coins by itself.
EDIT: Sorry about butchering this post so many times. The quote within a quote thing really messes me up, and, "Go Advanced," is the only way I'm comfortable, but I try to save time by not doing it and usually fuck something up.