while i don't doubt that at all about the tippman in the rain (on one of our fields theres a river that runs through the middle and is about weist deep for a good portion of it i saw somebody drop underwater to avoid getting shot, as ridiculous as that was the tippman was fine and well of course the paint was ruined but ya know) i have to say that when you make the bump from entry level to an electro (or cocker if that's what you go for i'm not getting into the whole thing here but it's just preference) you will take better care of that and so won't (in theory) be leaving it in the back of pick-up trucks, or going for a swim with it
as for the lower end electro's.......... they can be faster then the mechanical ones(stock- i'm not talking about any do-it your self mods on spyder frames or tippmans or anything like that just saying so you know they do exist) but i've heard some bad things and this is all just me rambling on having no idea what i'm talking about because i can only tell you what i've heard as i never had a lower end electro......... but of course there's more to go wrong and it does but i have to say, i can't go to pev's fairfax(my local pro-shop) without playing with the electro piranha and i can get pretty fast with that.
and yes definately go for a motorized hopper, if you go cheap and get the 8 dollar gravity fed one having to shake your gun every couple shots will get real old real fast and that is an upgrade i recommend even over a barrel