The only problem with upping the current limit for PM storage is that it means additional space will be taken up on my server. It certainly isn't a lot of space for people to have an extra 50 messages stored, but when you've got 5,000 members carrying an extra 50 messages, then it really adds up! ^_^
I increased the limit for Gold Supporters as an extra way of saying thank you for helping out with Devil May Cry.org