Believe it or not I still regularly use an Amundson Custom from about 2004. The thing must, must, must have something like 500 days of hard riding on it & it's still intact!!! Paid $450 for it new back then.
I only buy 1 or 2 year old kites. Sometimes I pickup near new year-old kites for around $300 per. Sometimes used 2 year old kites for $200-$250. They last pretty well. Only had one blow apart out of 8 that I've bought & used for a solid year.
Basically my annual kiting budget for gear is about $1200. And guess what??? When one of my $250 kites gets yarded in the surf...do I care? Not so much, cuz I know I can get another one cheaply!!!
That's been working well for me for a decade! Only thing I don't ever scrimp on is my lines. Did that once & broke my leg landing a jump. Always get new or near new lines & bar
I've had the same harness for 10 years as well, works great, old DaKine harness, just replace the straps regularly.