The Twin-Chamber bagless system used on those two models was absolutely disgusting. The HEPA filter clogged quickly and was a pain to clean and empty. I've heard worse about the 90s Eureka system however. The bagless Windtunnels I've used do clean a tad better than the current T-Series style machines, but cyclonic filtration is a must in a bagless vacuum. Consumers have come to expect it. The bagged Supreme is a great vacuum at a great price. They must be selling well, as it has remained in production since the late 1990s. 

Hoover recently discontinued the Elite as well. The original Steamvac is highly rated and continues to be sold in multiple variations. We still have some of the pre-TTI Hoover.