That sounds like you've created yourself a bit of a habit. I too have habits of a different variety, and at times I've had to ask myself why I feel the need for a substance to come down from a long day. I think that probably boils down to lifestyle choices. It sure is nice to enjoy a good bottle of wine (pick your poison) but 6 bottles a week sounds like a relatively expensive habit, in terms of dollars.
Assuming you don't drink the bottom shelf, sugar-infused labels, your spending between $8 and $20 a bottle. At 6 bottles a week, that's $36 to $120 per week on wine. $1,872 to $6,240 per year. That's $18,720 to $62,240 over ten years in actually spending (not adjusting for inflation).
If you just cut you habit in half, and assuming a your getting a 4% return on what you've saved, you'll have accrued between $13,072.73 and $43,575,78 over the same 10 years. You'll probably free up your time a fair amount to do some other enjoyable, more productive things.
I think I've talked myself into adjusting my own habits!
ps. I was a bartender for years and was always amazed at how many "regulars" would come in and drop $50-100 five days a week.