Lately there have been no killer midrange cards that offer higher performance than the last gen high end card, like was the case with the 9500p, or the 6600gt. A 7600gt comes close to the x850xt in performace, and that's about as good as you can expect. The x1800gto may be just as fast or a bit faster, but it's only a stop gap card. Eventually it should get replaced by the x1700xt, which may be the next killer midrange card, but we don't know yet.
In the budget card sector things change even slower, since the primary concerns in that market are profit and saving costs, not performance. Many people expected the new budget cards like the x1300p to offer 8 pipes and performance at least as fast as a 9800p. That didnt happen, and it still has 4 pipes, and does not beat a 9800p, but at least it's the fastest 4 pipe card on the planet.