Definitely would encourage you to look at DIY options.
I do a lot of sim racing as well as flight sims and use Sim Racing Studio to drive my shaker setup. The software can drive up to 6 pucks individually of each other. It can also save a profile per plane, so on something like a single engine you can have the most of the engine vibration come from a shaker in front of your setup and the G forces acting on the wings come from pucks on the appropriate side of you seat.
The same software can also drive things like fans, varying the speed based on your speed in game, Motion platforms Tensioner belt systems to simulate G forces etc.
You can end up with a much more immersive setup for the cost of a single Buttkicker.