I hear you... but I have to say that the Evo 4G LTE is a very capable phone, does everything I want in a phone at the right speeds. And the LTE network has a long way to go before there's a replacement protocol introduced. Plus, the new desirable phones will be $249 or more. An Evo @ $99 is a good thing.
I think I may be doing it this weekend. While I've thoroughly enjoyed my Hero and its "second life" with custom ROMs, I'm starting to experience noticeable lag in critical things like the dialer and contacts manager. I haven't yet found a ROM that doesn't introduce periodic lag. While the stock OEM ROM had other limitations, there's one thing I have to give it--the dialer never lagged. I have a highly rated Class 6 32Gb SD card installed, which has proven ample fast when copying files to/from, so I don't think it's that with apps loaded on it.