i think the bottom line to this discussion is that if you want somethhing half way decent for $200, you'll have to go second hand. that isnt a bad thing but just make sure you buy one from a reliable source (i.e. check the US equivalent of p8ntballer and buy one from someone who is well known as being a straight up bloke). 99% of people treat their markers like their babies anyway so it's fairly hard to buy a lemon. just have a good look around but you shouldn't have any trouble buying something fun for $200.
if you get a tournament grade marker you really cant put it through hell and back. no matter what anyone may say keeping your marker ticking nicely is the most important thing otherwise you'll go out for a game and it'll fail exactly when you need it most. kicking the bolt open on any tourney marker is asking for trouble. they need to be treated with the respect that anything carrying 4500psi of pressure should be treated with. also, abusing your marker will start costing you money in o-rings. in the 5 years i've owned my own markers i've never had to change an o-ring. just make sure everyhing is clean, free of dirt and oiled at the end of the day and all will remain sweet.
rich