3 Months to WotLK

I have 4 account.
#1 expires in 9.3.08
#2 expires in 9.4.08
#3 expires in 8.19.08
#4 expires in 8.16.08

Each is on a monthly for $14.99. So that's $59.96 / month, or $719.52 / year.
If I get a 5th account, this would make it $74.95 / month, or $899.40 / year.

Plan 1.
I wonder if I stop playing now, and then renew when WotLK comes.
I would save, 2 months for each @ 14.99 x 8 = $119.92.
And when WotLK arrives in November, I will be buying 4 copies @ $40 each, so that's $160.

Plan 2.
What if I buy a 5th account now, using Refer-A-Friend. $30 for TBC + $30 2 months would cover August to November. Saving 30 days of $14.99 subscription. Net expense is $45.
And then I cancel Account 1 & 2; leaving me with Account 3, 4 and 5.

I can the user the Refer-A-Friend boosted exp to level up new character in the 5th account.
And using Account 3 to power level 4 & 5 lowbies.

Plan 3.
I can cancel Account 2. RAF 4 with new Account 5, RAF 3 with Account 6. Using Account 1 to Boost Level 3, 4, 5, and 6.
The cost will be August to November:
1. $41.97 - 3 months
2. $0 - cancelled
3. $29.98 - 3 months + 1 free RAF month
4. $29.98 - 3 months + 1 free RAF month
5. $59.98 - 2 months + 1 free new month + Battle Chest
6. $49.98 - 2 months + 1 free new month + Classic Set only
Net: $211.89 for 3 months. ($44.01 for 2 Zhevra)
Am I really going to have 5 accounts?

Plan 4.
Do nothing different.
Pay for 4 accounts monthy: $14.99 x 4 x 3 = $179.88
Pay for 4 accounts 3-months: $41.97 x 4 = $167.88 (Save $12)