Here is some information for thinking
House for sale in Dundalk 70 km from Dublin
https://www.daft.ie/louth/houses-for-sale/dundalk/36-ladywell-terrace-dundalk-louth-2588443/
95 K price,lets say this house will cost 100K
Noisy main road,only 5 minutes to exit 16 on M1
No problems with surrounding area,Garda station in about 3 min drive
The rent in Dublin 2K or 24K per year
Same noise in city jungle
Advantages buying in Dundalk
Low cost of life,no problems with play schools / schools/many forest /mountain parks around /great coast line
Possibility for travel with train ( train station only 15 min walk from this house )
Disadvantages
Travel to work to Dublin ,traffics but I could always listen great audio books trough the net during the journey time
Investment to Dacia Logan lets say 14K with 5 years warranty
So,all invested lets say 120K,this house will pay back in about 5 years time
Saving money which I will have spend for rent in Dublin I will get 125K in savings plus house in 5 years
OK,lets keep 25K for petrol and tols,so we have 100K ,house and car in 5 years time
So then I could move to Dublin buy house for 450K and keep house in Dundalk for renting what will pay part of my mortgage in Dublin.
Or I could buy brand new house in Dundalk for 250K on very good location having about 50 per cent deposit and house which will pay my mortgage.
If I would have 100K in cash and choice buy 450K house in Dublin I would definetelly move to Dundalk
I think prices in Dublin are slightly too big and have enough space for falling down.