I would like to get a robotic kit for myself to play around with and possibly play with some AI. So far I have mostly looked at Lego Mindstorms kits (EV3 and EV4 in particular).
I have quite some experience in programming, so a visual programming language is not something I need, nor something I would use. The main point of why I am looking at Lego robots is because they are easy to assemble and modify. If you have any other suggestions for robots that are easy to modify I would also very much appreciate it.
The main difference between the processors of the EV3 and EV4 that I was able to make out is that the EV4 is quite a bit slower than the EV3 (100Mhz vs 300Mhz) and has less RAM. On the other hand the EV4 runs on MicroPython instead of Unix, which might result in the EV4 being faster(?) but I don't know enough about that to know for sure.
Another thing that keeps me from just going for it is that both kits are marketed for children and I'm afraid that I might reach its limits quite quickly.
Thanks in advance for any help :)
Tl;dr: What is a good robot kit, that is easy to assemble and modify and also suitable for an experienced programmer. Possible options so far: Lego Mindstorms EV3 or EV4