Hello, A dealer in town has a 99' cat 236 with about 900 hours. He wants 17k. I ran fit or a bit and it is a clean tight unit. I also looked at a new (06) case 420 for about 23k. My question is, is it worth going to a new and will the Case perform as well as the Cat? I will be using it for many different items:landscaping/hardscape/etc... Thanks!