Perfectly normal and room for more.

In order of arrival, mine are:
1999 Trek 26" MTB hardtail
2019 KTM Kapoho 29er E-MTB full suspension
2019 KTM Scarp Sonic 29er MTB full suspension
2019 Wilier Zero.6 Road bike
2020 Trek Madone SLR road bike

Who knows what next year will bring?