The distance is nothing, especially with the highway being good.
We live in Toowong and my partner works further out than Springfield. She gets there in just under 25 minutes. Plenty of nice areas that will be under 30 mins away from Springfield and the drive is a small sacrifice to make for the facilities they'll get access to. Equally, the shops in Springfield are fantastic in comparison to the industrial shithole of Seaford.
Yep, chalk & cheese. Unless you're living bayside i.e. Mordy, Mentone etc, there's no quick & easy way of getting to Seaford.