Nod, at less than $1 a slot, the other company that you're using is either cutting some corners, will be out of business soon, or will have to raise prices in the near future, SPEC ME` =\.
New providers crop up and disappear all the time, so if you're with a new company, I'd bet money on the "out of business soon" scenario. If you're renting from a longer-term company that knows what it's doing to some degree, performance is the thing most frequently cut -- buying cheaper bandwidth and more highly loading machines are easy ways to do this. Service and extra features are also commonly reduced to achieve lower price points; it's not uncommon to have to wait a day or more for a (rather poor) response with some of the largest providers, the control panels with most providers is cookie-cutter, and free unlimited webhosting and a Ventrilo/Murmur/TS3 server are rare.
We've been one of the largest providers and also at the top of the performance and service heaps for nearly 9 years now, and we don't make a profit at our prices