I didn't think FR charged for pre-seat selection? Infact you can't choose your seat til you get on board so perhaps you're getting confused with their charging for pre-boarding???
Anyhow you can still have the lowest EI fare available you just can't choose where you sit til check-in (as previous), EI are only offering it as an add-on for those that are wanting to sit in a particular seat so they're only cashing in on a "supply and demand" situation. Works for most charters here in the UK.
I don't however understand this fascination with wanting to sit in the front section unless the seats are fluffier, the clientele dressed appropriately and the champagne on ice (and free).
