You get what you pay for, I spend the money on good shocks that can be rebuilt and they last a life time, I payed good money 35 years ago for Koni shocks for my Norton and they are still on the bike now and only rebuilt them last year for the first time, one oil seal blew and wasn't that hard to do, Ikon sell the rebuild kits for about $60.
I have put new Gazi piggy back shocks on my Thurxton for the same reason, they are rebuildable, but took me a while to dial them in with so many settings but has made the Thruxton handle so much better even with the stock tyres.
Ashley