How much booze?

Today is Sept 14th. Our wedding, Nov 14th. 2 months!! holy frig where did 7 months go?

We have quite a bit of work to do. Ie, how much booze do you need?

Some online liquor calculators I found:

The LCBO has the table. For 150 people they recommend (for 6 hours)

24 cases of beer
60 bottles of wine (750 mL)
18 bottles of liquor (750mL)

they also have this LCBO calculator:

For this you enter the percentage of beer/wine/liquor drinkers. But, I have NO idea!!

Based on a Monitoba's Liquor Marts Online:

25 cases of beer
30 bottles of wine
9 bottle of liquor

Problem with this, is you can't enter how many hours booze will be served.

According to evite, we need for 150 guests:

11 cases of beer
53 bottles of wine
14 bottles of liquor

Problem with this calculator, is you have to specify light, average and heavy drinkers. Again, no idea.

So, after my research, I am a fan of the LCBO reference table. Sure it states the most amount of booze, but, you can return unopened bottles so I'm sure the parents are ok. Don't want to throw a rockstar wedding and run out of booze!!

61 days!