the tired mature theme, need new summer tires

Hello, I am currently looking for new summer tires. need 225/45/17 on star spoke 96. a mature has a bump, the fabric inside is probably torn. since one does not buy a new mature, I have to take at least 2. however, since I have more often gelsen, that there can be problems with the esp, with different tyres/profiles/profile depths/marks, I think to exchange immediately all 4. at the time arepirelli p6000(I believe) on it. now the question arises, either r buy only 2 new tires and for that “good” brand tires around the 100 euro? or rather buy 4 new tires and for that something like nokian/nexen/nankang for about 70 euro the piece? 4x 100 euro unfortunately are not in question at the moment. one reads in the internet the most different things, one are fully satisfied with favorable matures, the other drive nothing under 140 euro the piece, since the mature is indeed the only contact to the road etc… my ride profile is nothing extraordinary, I move my 316ti completely in compliance with society via Germany’s country roads, actually never in the border area and also very rarely on autobahnen. fazit–> what would you do, 2 new “brand tires” for about 100 euro buy the piece, or equal to 4 new for about 70 euro the piece? ps: the remaining 2 old tires still have about 4-5 mm profile