Why YMMV?
The offer email had some verbiage about offer being available only to those who received the email. But since the code and the offer link seem to be generic, I think there's a chance it'll work even if you didn't receive it.

You've got the Card; now, get 5,000 bonus points!
As a valued Sony Card member you're eligible for this special bonus points opportunity*:

Spend $1,500 or more on your Sony Card from July 1, 2009 through August 31, 2009 and get 5,000 bonus points!

Getting there is easy; just use your Card for everyday purchases like gasoline, groceries, summer vacations, and Back to School items. You can even earn points for the bills you have to pay every month by setting up automatic bill payments with your Card!

To be eligible for this special opportunity, follow these simple steps:

1. Go to www.sony.com/sonycard/summer2009
2. Enter offer code ->SCSummer09<- to enroll
3. Use your card for everyday purchases from July 1, 2009 through August 31, 2009

Info from KO3bIPb

~$50 in bonus points for spending $1500? That's only 3.333%, and there are cards that will give you as big (or bigger) of a bonus for spending either nothing, or a far smaller amount. Not worth it...

hejustlaughs said:What cards are you talking about? This is an offer for existing cardholders.

Extra 3.33% equates to 4.33 points per dollar which isn't a bad deal.

If you use this in place of a 1% card, it equates to 3.33%.

Thanks, just enrolled, but didn't get the email.

g10ny said:Sony card made me spend some $$$ on it almost two years ago by luring me with the prospect of 20K points that never came.

I'll pass.

Yeah, careful with this one. They had a similar offer about two years ago, generic code, would not budge on rewarding points unless you received the mailing. CS wanted you to mail in physical mailing, etc. It was a whole lotta stupid.

parmenides said:g10ny said:Sony card made me spend some $$$ on it almost two years ago by luring me with the prospect of 20K points that never came.

I'll pass.

Yeah, careful with this one. They had a similar offer about two years ago, generic code, would not budge on rewarding points unless you received the mailing. CS wanted you to mail in physical mailing, etc. It was a whole lotta stupid.

Relevant FW thread: Sony 10k points/companion ticket offer
I actually received the mailing for the above deal, but still had to hound them a bit to get my points. I recall many FWers who tried to hop on having not received the mailing, and most were DENIED.

So I'm going to play it safe and ignore this one, unless I get this email.

RushnRockt said:medicine said:hejustlaughs said:What cards are you talking about? This is an offer for existing cardholders.

Extra 3.33% equates to 4.33 points per dollar which isn't a bad deal.

If you use this in place of a 1% card, it equates to 3.33%.

Sony card already provides 1 point per dollar before the promotion.

RushnRockt, it's a 3.33% bonus compared to a standard 1% card. Try to keep up.

why dont you guys just get the Sony Playstation card?

$100 for the first $300 you spend, then when you spend $1500 in the first 6 months you get another $100 credit, then another $100 credit for another 1500 in 6 months.

Works anywhere, don't need to buy a ps3 or buy on the Sony Store

JTFH said:Looking around on the Sony rewards site, this 5000 points won't get you jack.
It'll get you $50 in PSN money if you're into that stuff.

calwatch said:And if you play the Wheel of Fortune and/or Sony Pictures Television games daily (answers on the Contests and Sweepstakes board), you get a 15% off discount on the items in the rewards catalog, and the equivalent of 20 cents every day - which can add up, dropping the cost of a $50 gas card down to 4500 points or less.

They recently stopped discounting all gift cards, so you have to pay full point value regardless of what bonus level you're at. It sucks considering you have to give points for shipping too.