Yeah. Ram, disk and CPU are cheap. Now, dealing with abuse, etc... is expensive, but most of the per-customer costs are the same no matter how much ram they order, so I think it makes sense to drop the cost per gigabyte as you order more ram.

the formula I use to calculate the 1 month pricing is this: $1 for every 64M ram plus $4 per account. I think it works out reasonable; I was figuring $512/month for each 32GB / 8 core hardware, which is maybe a little high, but it is within reason.