" I really need a single stage for ammo like .44 mag, , .38spl, 9mil, 45, and maybe .30 carbine. What do you reccomend? Are the Lee $30 presses any good?"
Soontobe, "best"? NO. But for low stress cartridges such as those, yes, without question the compact little Lee "Reloader" is a great press. It will last you a LOOONG time if you keep the ram sorta clean and oiled. Even if you take back the larger presses later, the little one will still be quite useful as a dedicated decapper, etc.
Given the time involved in all the steps of a even a short reloading session from start to finish, and the fact that straight wall cases require only three dies that need - maybe - 40 seconds each to swap out and in, the time "saved" by the costly "quick change" inserts seems pointless even if they were instanteanous. Okay, the breech-lock bushings are cheap enough - for one set - but adding them to five 3-die sets will quickly get expansive to someone striving to hold costs down. And understand that we do NOT need to lock dies into a press with a wrench or pliers, that's also pointless and does eat time; all the dies need to be is hand tight in the press.
Enjoy your reloading and shooting but don't spend more than you need to. Don't fret the brand or color of your tools, they all work well or they wouldn't have survived in the market for so many decades. Some colors cost much more than is justified by the VERY simple things they do. We may never get more than we pay for but it's very common to get less than we pay for!
(Are you headed for U. Kentucky? I have a "soon to be Wildcat" grandson headed that way this fall.)