The Hilton Garden in is a few blocks away from campus and is pretty convenient to both towns. Congratulations to your son and I’m sure he’ll enjoy his time at Purdue.
Thanks for all the useful information, so I don't need to stay in Lafayette so we can get to know the town a little better? West Lafayette is sufficient to stay and explore ？
To give some idea I just got on Google maps and did some driving time estimates for some drives and most are short/not too long. Some examples: driving about a far as you can from one end to the other (I choose SE to NW, but would expect the same or less for similar drives) was about 20 minutes, and something that was close to "downtown" (using Purdue welcome center) to "downtown" (using the courthouse) was under 10 minutes (and only about a 25 minute walk). Obviously none of this was based on a hotel location, but I don't think that's likely to make a big change to my observation.
My suggestion is for you to plug in your hotel location (or the different location if you're still up in the air) and use Google maps to get some estimates for driving/walking times to various areas of Lafayette/West Lafayette that you think you'll like to check out. My gut says that unless you're going outside of the city, you're probably looking at 10 to 15 minutes to get to most places; with 20 or 30 being about the maximum (and which will also cover getting into some of the surrounding/outside of the city areas if that has any interest).
That's my $.02,
Correct. That hotel is not close to campus.
I wouldn't call that the most convenient location, but I can't say that it's that much better or worse than other options (as I haven't checked the location of every possible hotel). According to Google maps it's about a 10 minute drive to downtown Lafayette and more like 15-20 to the Purdue Campus. I wouldn't call that great, but I wouldn't call it terrible either.
I'd say if you consider those drive times reasonable and you're (otherwise) happy with the hotel (rate, amenities, etc.), then I don't think I'd bother switching. If not, then look at other options and see how much (if any) you'll save on drive times. Personally, I don't think I would switch hotels just to save a few minutes drive time, but if the other option meant, I could walk for most things (rather then driving), then I might be tempted to switch (depending on price, quality, etc.).
That's my $.02 on that,