Any Burton, or saloman board you buy will last you a while. My first 2 pairs of saloman boots lasted me 11 years, I switched to burton last year only because I get a proform, and they seem to be holding up to the use and abuse I put them through. Remember, your boots will pack out... so make sure they are a little tight when you origionally purchase them.
Buy them where they are cheapest, and then you will have more money for a lift ticket. I know BurtonAvenger is all about local shops, and I ususally agree, but when a shop (specifically willies) fucks up your board twice, I tend to loose faith in them.