Picked up 2 in-store and got the 800 MSP codes on my receipt.
Make sure to pick up this EXACT 3 month XBL Gold card for the $12.99 price, all others will ring up at normal pricing.
If you lug your 360/PS3 around with you a lot locally or across the country, the G155 is legit! $199 is a great deal for this, lowest price I've seen!
Edit: Just noticed there's a shipping charge of $10 (OP might want to update the thread title to reflect this).
Yes, in-store @ Best Buy! I brought in printed pages of the $39.96 price from FRYS' website and the "Check Availability" page to let them know it's still in stock at FRYS (they might call to confirm).
I was able to successfully price match the $39.96 price at Best Buy and get the $10 GC, YMMV (as the manager said I couldn't get the GC but the changed his mind because the transaction couldn't go through without it having to give me the GC)!