I went Evo, then Epic (within 30 days) after 6 Pre's. Had been Palm, and loyal, since the 650.
I will never go back, I do not care what HP says or produces. And I forgot
how behind the times the Pre was when I was helping my son's friend with his.
My Epic came with just about everything I had to tweak, read about, and hack, maybe doctor. The apps, can find and use so many. Yes, there are a lot of useless one, thousands, but there are also so many things that are.
Developers will never go back to HP and WebOS, there are no numbers left, no money in it. Android is growing by 100's of percents year over year, so it would make sense to keep time and money in a growing ship, not sinking (as did my stock, etc).
Stay loyal, if it does what you need and actually works, great. But I was too loyal for too long, now I have so much more flexibility, it is worth it to me.