The dealer in Tyler is just a few miles from my place and I bought my first tractor from him, a Century 2535, and then a few years later a 16 foot trailer.   I doubt anybody will beat him on pricing for what he has in stock. If it's on the yard, it's for sale and he really wants to sell it.  When I brought my tractor in to have an issue fixed, he kept it for about a month and then said that they couldn't find the problem.  I started it up and in five seconds, I showed him the problem.  I don't believe they ever looked at it, they just let it sit there until I needed it.  I never brought it back and I fixed it myself every time after that.    They have been good at suggesting after market parts to fix things like the fuel pump.  But if I needed something from them, they would order it and tell me it would be there on Thursday.  When I got there on Friday, it was going to be there next Thursday.  This went on and on  until it did eventually arrive. When I talk to other people that have dealt with them, the Thursday joke is something that we all share. 
My neighbor has had several Zetor tractors and he's a big fan of them.  
When I was shopping for a new tractor, I considered Zetor because I like how little electronics they have, but when I looked at them at J&K Sales, I was very disappointed in how quickly they aged.  A few where beat up from years and years of abuse, and that was obvious, but several only had a few hundred hours on them and they also looked beat up and worn out. 
While I was looking, my neighbor was hiring people to mow his place because his Zetor was in the shop.  It shouldn't of been a huge deal, but it seamed that the dealer was losing parts, forgetting to order parts, and never having time to put it back together.  This went on for a few months and it really ended all interest that I might of had in Zetor.