Yeah, shop around people. I've never had a problem with CDInzane in regards to shipping, and I've actually noticed no real difference in terms of it being faster or slower then TER or LaserCD or Amazon, etc.
If they are charging a lot for a CD, then I goto a different vendor. If they got a good deal, I'll just go through them. If there's a Japanese import you want, CDInzane actually has a good selection of Japanese imports if you're that type of collector. I also know that last year they were giving away free CD's based on the number of orders you placed with them. Plus, I did the deal with buy a $250 Gift Certificate, you get $50 free. So pretty much I just did a downpayment for myself, and got $50 free.
Also, from my watching, their pre-orders are always weirdly priced based on expected price, and can then change once they actually get the CD's. I'm not sure though.
I used to love TER, but not as much now. Their free shipping is the greatest perk - but there was a period where almost 3/4th the CD's I ordered from them were getting the CD prongs crushed in the mail. They're the only vendor I've had that happen from, and it was actually reported other people getting that kind of treatment on the forum. Plus, the value of dollar went down so their prices went up as well. So instead of their $12 average CD price, it's now like $14 - which is comparable with other vendors. I remember it also took about twice as long to receive CD's if you ordered 1 or 2 items. If you ordered 3 they upgraded it and you received it in like 3 days. I would be ordering 2 items, and buy a 3rd just so I would get it faster. If I have to pay $2 to get a CD in 3 days from another vendor, so be it.
I'll still shop at TER - as they do get some CD's in that I can't find elsewhere. But I shop around - and do most of my business currently with CDInzane (as I've had no bad experience at all with them). If it's one thing, they just get their shit in faster then most. The End Records used to be AFM's record distributor for the US, but now they are not. It took them 6 months longer then CDInzane to get Edguy - Hall of Flames CD in stock. If I have to pay $1 more in price to get it close to when it comes out in Europe - I'll do it!
Moral of my post: Shop around! No vendor is perfect!