This is an excellent point and was going to be the crux of my response. I've got the KC Kursk Tiger and Figarti 007 Wittman Tiger, I also have the Normandy Jagdpanther and Winter Panzer IV from KC so I've got a pretty good idea of the current quality of KC tanks. That KC quality level bing very good. Honestly, KC is producing the best vehicles it has ever released IMO. The detail on the Panzer IV and Jagdpanther's tracks are very good (within the limitations of the polystone KC design) as are the detailing on the tanks themselves. Both paint jobs are excellent as well.
That being said, Figarti tanks ARE more detailed. The Wittman Tiger has better tracks with hollowed out drive sprockets, individual wheels, and more detailed track links. It also has wire mesh engine covers, a removeable cupola mounted machinegun, a commanders cupola hatch that opens and closes, and 3 wire antennas. Paint job is equal to KC's recent tanks IMO.
It used to be you had to pay more for this extra detail, but with KC tank prices climbing in recent years, and Figarti trying to reduce prices by releasing larger numbers of models with their current release of Tigers, the prices are pretty much the same.
The most current KC Tigers (Grey and Winter) cost $215 with one 1/2 body commander figure. KC charges $25 for a half body commander figure (based off pricing of their 2 Figure Tank Commanders Sets) so the Tiger itself costs $190 retail. The Figarti 007 Wittman Tiger costs $169 with no figures. The other two recent Figarti Tigers, Winter and 222 Normandy cost $189, but based off pictures their paint jobs are more detailed/weathered than the 007 Wittman Tiger.
Thus, with the Figarti 007 Wittman Tiger I can currently get a Tiger that is more detailed, with an equal paint job to KC tanks for $20 cheaper, or with the Figarti Winter/222 Tiger I can get a Tiger that is more detailed and has a better paint job than the KC Tigers for the same price.
This isn't to say KC vehicles are bad, as KC and FIgarti do have distinct "styles", i.e. KC being more of the traditional toy soldier look and Figarti skewing towards a more detailed modelers approach IMO, but it is saying that there are choices that are just as good if not better than KC for the same price. Ultimately, it's up to the collector to decide what he values/likes the best.
Personally, I hope KC responds to this competition and ups the game on their vehicles even more. They've done opening hatches in the past (T-34/76) so I see no reason they could not incorporate this in their future models. Wire mesh engine covers and antennas would go a long way as well and are simple fixes that collectors have been asking for for years.
Some pics: