Some confusion of terms here. "Eurail" is a consortium of rail companies in European countries that

I plan on staying in Lausanne for two months this upcoming summer. I have a friend in Paris that I would like to see most weekends so I was thinking of taking either the eurail and getting some kind of pass or the tgv. Both seem fairly expensive-what is the best option residence inn reservations for me considering that I will be traveling residence inn reservations so frequently...
Right now if you booked an advance ticket leaving on a Friday from Lausanne and took a timing requiring no change and returned late on a Sunday the cheapest fare would be around 170 CHF or about $184 in Second Class.
Perhaps if you booked even further put you might get an even greater reduction. Are you planning on doing this every weekend for 8 weekends? Is there any way you can persuade residence inn reservations the friend to come see you on some weekends?
You might want to explore the possibilities by going to the SwissRail website at www.sbb.ch ; click on the EN version; you can price point to point trips as well as the various rail passes available.
residence inn reservations Some confusion of terms here. "Eurail" is a consortium of rail companies in European countries that issues passes. residence inn reservations "TGV" is the abbreviation of the name of the high-speed train network in France, run by SNCF. You can buy tickets at www.tgv-europe.com .
In general, point-to-point tickets in France will be cheaper unless you are travelling all the time. They automatically include the seat reservation. They can be bought three months ahead of time for substantial reductions residence inn reservations (even earlier for certain routes.) Regional service often does not require reservations or offer as many price cuts.
check www.sncf.com for fares between Basel and Paris. You should be able to see what it would cost if purchasing the ticket three months in advance. I would use a separate ticket (perhaps using a Swiss Pass) to go from Lausanne to Basel.
But yes, unless you book way in advance and/or trawl for super saver fares, it's not particularly cheap. I keep seeing Lausanne-Paris E25. But I've yet to be able to actually get a E25 fare. Maybe someone knows the magic combination to get these low fares.
How frequently? The 25 / per way Prem's fare can be found, as mentioned above, 3 months ahead and if you go to the site at midnight, exactly 3 months ahead, normally you can get it. In Asia, I read somewhere, here maybe, they have more chance to get it because residence inn reservations they are hours ahead of Europe or America... I have made sure to buy the lowest priced tickets this way, setting my alarm at 23h45 or so for Geneva - France ( Paris or Marseille). There are much fewer TGV's running here to France than within France so getting the cheapest tickets is a little harder. You would need to plan ahead and it's a risk to take because bought/paid residence inn reservations on line, that's no refundable. But this seems to be the most economical way.
On above site ( TGV site for Switzerland residence inn reservations that I use ) I do see 25 ticket for Lausanne residence inn reservations Paris but that's at 18h24. Earlier trains are 44 55. I do think you would get more options when you train eaxctly at mid-night.
Another thing, there are only for TGV LAUS PAR actually, that's, as I vaguely remember, due to a construction works at border areas. This might last for months or even a year but normally there are 6 or 7 TGV's per day between the 2 cities.