you gotta ride what you got so it's good. Don't get too caught up in the weight wennie thing. It's fun but kinda pricy unless your a cheap bastard like me and find the lightest bang for buck items out there.
My current hardtail is an ebay Magnesium frame that is got for 120 bucks

I built up the whole bike minus fork for $450 and slapped a $500 fork on it

I have no regrets getting the top of the line fork on it, its the rockshox REBA Team w/ remote loc out which I LOVE