I collected them up til the most recent three came out, then stopped cos I wasn't keen on the new mould or the bendier plastic. I remember the days of the old J-club and some of us eagerly trying to collect all the past models - I think Elli, Skye and me were the first three to complete the set.
I'm guessing I count as a 'keen collector', I completed the set several years ago now so I'm not actively buying them now but I've still got them all and if more were ever made I'd add them to my collection
I bought a factory-flawed Cobweb with the intention of having a go at customising, but then got so caught up in collecting Originals, I sold Cobweb on. His new owner did customise him - brilliantly - so I was glad I hadn't got round to it. The only other HOTY to pass through my yard came with a stable I bought on eBay. I think it was a Nutmeg and I gave it to a little girl at the UH Hullabaloo to start her Julip collection.